Research involves building acoustic systems which, because the Schrödinger equation is a wave equation, are mathematically analogous to the quantum mechanical systems This approach allows the study of... Prof. Julian D. Maynard
This project studies the growth and electrical, magnetic, thermoelectric, and nonlinear oxide thin films and multilayer structures. The emphasis is on functional materials that show unusual properties... Prof. Qi Li
This project explores the effect of spin injection into non-magnetic systems and study the effect of nonequalibrium spins on various physical properties and spin diffusion, which is an important eleme... Prof. Qi Li
Nanoporous carbon is formed when a carbon-containing materials (which could be as simple as sugar) is pyrolyzed (i.e. heated up in an inert atmosphere). During this process, gases escape from the stru... Prof. Vincent H. Crespi
The body of experimental work on semiconductor quantum well lasers grows rapidly, but without a corresponding theoretical consensus on how the microscopic electro-optical behavior deviates from an ide... Ryan S. Woodworth
Nanoporous carbon is a primarily sp2 carbon system wherein the carbon sheets are rolled and wrapped into a complex holey structure with pores on the order of 1 nm in diameter. Might it be possible, if... Prof. Vincent H. Crespi
The copper oxide superconductors are one of the most unusual new classes of materials to be discovered in the past few decades. These materials become superconducting at very high temperatures (relati... Prof. Vincent H. Crespi
Understanding transport along the edge of quantum Hall systems. Long wavelength excitation in quantum Hall systems. Phase diagram of bilayer quantum Hall systems etc. Shivakumar Jolad
Our current research is in to the behavior of 2D plasmons, 2D electronic behavior, and 2D magnetic behavior in specially prepared surfaces and thin films. Prof. Roy F. Willis
Using a self-consistent tight-binding model we studied the radial charge distribution in a bromine-doped double-walled carbon nanotube system. Our results confirm recent Raman measurements that most o... Prof. Vincent H. Crespi Cristiano Nisoli
Chan's group is currently interested in investigating the effects of quantum fluctuations on the electrical properties of one dimensional superconducting nanowires(with diameters from sub-10nm to 100n... Prof. Moses H. W. Chan Dr. MingLiang Tian
The role of electron phase in carbon nanocones is truly fascinating. As a low-energy electronic state circuits the apex of the cone, the phase of the wavefunction experiences a mismatch, and different... Prof. Vincent H. Crespi Dr. Paul E. Lammert
Pristine carbon nanotubes can be metallic or semiconducting, depending precisely on how the graphene sheet has been wrapped up to form the tube. If the highest-energy electronic states of graphene can... Prof. Vincent H. Crespi
We predict the stability of a new extended two-dimensional hydrocarbon on the basis of first-principles total energy calculations. The compound that we call graphane is a fully saturated hydrocarbon d... Prof. Jorge O. Sofo
Electronic states localized at the surface of oxide semiconductors are a common cause of their low ionization potential. We study the properties of these surface states using density functional theory... Prof. Jorge O. Sofo Ning Shen
A self-assembled crystal formed from nanoscale components, perhaps just simple monodisperse (i.e. same-sized) spheres, forms a framework into which one could infiltrate a wide range of materials. Of p... Prof. Vincent H. Crespi
Professor Zhu's research effort focuses on investigating the electronic properties of mesoscopic and nanometer scale structures, combining electric transport measurements and scanned probe studies. Jun Zhu
Clever chemists have determined how to transfer unusual stoichiometries and bond geometries from novel CVD precursor molecules into the solid state. We are applying these advances to the design of new... Prof. Vincent H. Crespi
The ultimate size limit for functional devices is the single molecule. Biology is built upon an extraordinarily rich set of molecular-scale devices, such as DNA (information storage), membrane protein... Prof. Vincent H. Crespi
Our work on carbon nanotubes covers a very wide range of systems and physical phenomena. In terms of structural properties, carbon nanotubes are one of the most anisotropic materials known: in the axi... Prof. Vincent H. Crespi
This project studies the growth and electrical, magnetic, thermoelectric, and nonlinear oxide thin films and multilayer structures. The emphasis is on functional materials that show unusual properties... Prof. Qi Li
Contemporary condensed matter and materials physics, focusing on superconductivity and other collective phenomena in oxides such as Sr2RuO4, nanostructures, particularly disordered ones, and disordere... Prof. Ying Liu
Phase transition studies, particularly quantum fluids and solids at cryogenic temperatures, in reduced dimensionalities and in the presence of disorder. Prof. Chan's research group is also involved wi... Prof. Moses H. W. Chan
When we want to make a machine, we normally buy some nuts and bolts and parts and screw everything together. Nature works differently- biological "machines" assemble themselves. The intrinsic interact... Prof. Vincent H. Crespi
The properties of molecules, biological macro-molecules, artificial nanostructures, surfaces, and bulk materials are the emergent behavior of interaction between atoms. Quantum mechanics provides a ve... Prof. Jorge O. Sofo
See my research group website for further information. Prof. Paul S. Weiss
Nanoporous carbon is a primarily sp2 carbon system wherein the carbon sheets are rolled and wrapped into a complex holey structure with pores on the order of 1 nm in diameter. Might it be possible, if... Prof. Vincent H. Crespi
This project studies various multiband effects in the new (Tc ~40 K) MgB2 superconductor with varying degrees of scattering. Prof. Qi Li
My research focuses on epitaxial growth and fabrication of novel nanostructures and low dimensional systems using physical vapor deposition and semiconductor device fabrication techniques; creating an... Xia Hong
Condensed Matter Research Conor Puls
The Cole group is investigating various phenomena at surfaces. The current focus includes these topics: wetting transitions of liquid films on weakly-attractive surfaces, adsorption on patterned surfa... Prof. Milton W. Cole
Phase transition studies, particularly quantum fluids and solids at cryogenic temperatures, in reduced dimensionalities and in the presence of disorder. Prof. Chan's research group is also involved wi... Prof. Moses H. W. Chan
At temperatures below 2.176K, liquid He-4 enters into a superfluid state and flows without any friction. The onset of superfluidity is associated with Bose-Einstein condensation, where the He-4 atoms ... Prof. Moses H. W. Chan
Helium adsorbed onto carbon nanotube bundles can exhibit novel low-dimensional phases, ranging from nearly free-particle like behavior to strongly localized phases. The hard-core interaction between a... Prof. Vincent H. Crespi
Not all nanotubes are made from carbon! One closely related family are the boron nitride nanotubes. Boron is one to the left on the periodic table from carbon and nitrogen is one to the right. Therefo... Prof. Vincent H. Crespi
Carbon nanotubes are actually a special case of a more general structure, the carbon nanocones. A nanotube can be though of as a cone with six pentagonal rings in the endcap; these six pentagons induc... Prof. Vincent H. Crespi Dr. Paul E. Lammert
Unique among the elements, carbon can bond to itself to form extremely strong two-dimensional sheets. Since we live in a three-dimensional world, these sheets can be rolled and folded into a diverse... Prof. Vincent H. Crespi
The Cole group is investigating various phenomena at surfaces. The current focus includes these topics: wetting transitions of liquid films on weakly-attractive surfaces, adsorption on patterned surfa... Prof. Milton W. Cole
Understanding transport along the edge of quantum Hall systems. Long wavelength excitation in quantum Hall systems. Phase diagram of bilayer quantum Hall systems etc. Shivakumar Jolad
Our current research is in to the behavior of 2D plasmons, 2D electronic behavior, and 2D magnetic behavior in specially prepared surfaces and thin films. Prof. Roy F. Willis
Chan's group is currently interested in investigating the effects of quantum fluctuations on the electrical properties of one dimensional superconducting nanowires(with diameters from sub-10nm to 100n... Prof. Moses H. W. Chan Dr. MingLiang Tian
Pristine carbon nanotubes can be metallic or semiconducting, depending precisely on how the graphene sheet has been wrapped up to form the tube. If the highest-energy electronic states of graphene can... Prof. Vincent H. Crespi
We engineer geometrically frustrated lattices of nano-magnets to build novel frustrated magnetic materials using electron beam lithography, and to study their thermodynamic properties. Artificial s... Prof. Vincent H. Crespi Cristiano Nisoli
We predict the stability of a new extended two-dimensional hydrocarbon on the basis of first-principles total energy calculations. The compound that we call graphane is a fully saturated hydrocarbon d... Prof. Jorge O. Sofo
Professor Zhu's research effort focuses on investigating the electronic properties of mesoscopic and nanometer scale structures, combining electric transport measurements and scanned probe studies. Jun Zhu
Our work on carbon nanotubes covers a very wide range of systems and physical phenomena. In terms of structural properties, carbon nanotubes are one of the most anisotropic materials known: in the axi... Prof. Vincent H. Crespi
I am interested in using atoms to address basic problems of physics. This can be accomplished with precise measurements of fundamental constants, with tests of fundamental symmetries, and by using ato... Prof. David S. Weiss
Contemporary condensed matter and materials physics, focusing on superconductivity and other collective phenomena in oxides such as Sr2RuO4, nanostructures, particularly disordered ones, and disordere... Prof. Ying Liu
I am generally interested in the use of ultracold atomic gases to study many-body phenomena. I am currently building an experimental apparatus to study fermionic atoms confined in an optical lattic... Prof. Kenneth M. O'Hara
My research focuses on epitaxial growth and fabrication of novel nanostructures and low dimensional systems using physical vapor deposition and semiconductor device fabrication techniques; creating an... Xia Hong
Phase transition studies, particularly quantum fluids and solids at cryogenic temperatures, in reduced dimensionalities and in the presence of disorder. Prof. Chan's research group is also involved wi... Prof. Moses H. W. Chan
The body of experimental work on semiconductor quantum well lasers grows rapidly, but without a corresponding theoretical consensus on how the microscopic electro-optical behavior deviates from an ide... Ryan S. Woodworth
Different aspects of a carbon nanotube system can have dramatically disparate structural and mechanical properties: axial stretching of a single-walled tube is extremely difficult, but axial sliding o... Prof. Vincent H. Crespi
In our recent work we looked at the details of the nanotube alignment on a graphitic substrate. We discovered that the interaction of a one-dimensional tube with a two-dimensional substrate leads to a... Prof. Vincent H. Crespi
Manganites of the form A3+1-xB2+xMnO3 have a transition from a high-temperature spin-disordered insulator to a low-temperature ferromagnetic metal. The resistivity is extremely magnetic field and pres... Prof. Vincent H. Crespi
Our current research is in to the behavior of 2D plasmons, 2D electronic behavior, and 2D magnetic behavior in specially prepared surfaces and thin films. Prof. Roy F. Willis
We engineer geometrically frustrated lattices of nano-magnets to build novel frustrated magnetic materials using electron beam lithography, and to study their thermodynamic properties. Artificial s... Prof. Vincent H. Crespi Cristiano Nisoli
While the theory of carbon nanotubes is the initial leitmotiv of my research in theoretical condensed matter, results and interests have driven me away from those boundaries, as in the case of what ... Cristiano Nisoli
A self-assembled crystal formed from nanoscale components, perhaps just simple monodisperse (i.e. same-sized) spheres, forms a framework into which one could infiltrate a wide range of materials. Of p... Prof. Vincent H. Crespi
Magnetism is one of the more mysterious of the materials properties that are familiar from everyday experience. Magnetism arises from the so-called quantum spin of the electrons within a material; the... Prof. Vincent H. Crespi
Research focus is on colossal magnetoresistance materials, in which we have found an unusually large low field magnetoresistance effect in the strained manganite ultrathin films and nanobridges, and l... Prof. Qi Li
This project studies the growth and electrical, magnetic, thermoelectric, and nonlinear oxide thin films and multilayer structures. The emphasis is on functional materials that show unusual properties... Prof. Qi Li
Phase transition studies, particularly quantum fluids and solids at cryogenic temperatures, in reduced dimensionalities and in the presence of disorder. Prof. Chan's research group is also involved wi... Prof. Moses H. W. Chan
Learn more about my research at my group website. Prof. Nitin Samarth
Why is a bar magnet shaped like a bar? Because a ferromagnetic material prefers not to terminate magnetic lines of force in a free surface. Remember that the south pole of one magnet is attracted to t... Prof. Vincent H. Crespi
Manganites of the form A3+1-xB2+xMnO3 have a transition from a high-temperature spin-disordered insulator to a low-temperature ferromagnetic metal. The resistivity is extremely magnetic field and pres... Prof. Vincent H. Crespi
Research focus is on colossal magnetoresistance materials, in which we have found an unusually large low field magnetoresistance effect in the strained manganite ultrathin films and nanobridges, and l... Prof. Qi Li
This project studies the growth and electrical, magnetic, thermoelectric, and nonlinear oxide thin films and multilayer structures. The emphasis is on functional materials that show unusual properties... Prof. Qi Li
My research focuses on epitaxial growth and fabrication of novel nanostructures and low dimensional systems using physical vapor deposition and semiconductor device fabrication techniques; creating an... Xia Hong
This project explores the effect of spin injection into non-magnetic systems and study the effect of nonequalibrium spins on various physical properties and spin diffusion, which is an important eleme... Prof. Qi Li
Unique among the elements, carbon can bond to itself to form extremely strong two-dimensional sheets. Since we live in a three-dimensional world, these sheets can be rolled and folded into a diverse... Prof. Vincent H. Crespi
Our current research is in to the behavior of 2D plasmons, 2D electronic behavior, and 2D magnetic behavior in specially prepared surfaces and thin films. Prof. Roy F. Willis
Chan's group is currently interested in investigating the effects of quantum fluctuations on the electrical properties of one dimensional superconducting nanowires(with diameters from sub-10nm to 100n... Prof. Moses H. W. Chan Dr. MingLiang Tian
We predict the stability of a new extended two-dimensional hydrocarbon on the basis of first-principles total energy calculations. The compound that we call graphane is a fully saturated hydrocarbon d... Prof. Jorge O. Sofo
Electronic states localized at the surface of oxide semiconductors are a common cause of their low ionization potential. We study the properties of these surface states using density functional theory... Prof. Jorge O. Sofo Ning Shen
Research focus is on colossal magnetoresistance materials, in which we have found an unusually large low field magnetoresistance effect in the strained manganite ultrathin films and nanobridges, and l... Prof. Qi Li
We have recently developed a method to calculate the chemical reactivity of a surface with respect to water dissociation. The method is based on one calculation of the electronic states and provides a... Prof. Jorge O. Sofo
Our research is best described as materials theory, broadly defined. We use a variety of techniques chosen to suit the problem at hand, ranging from first-principles density functional theory to dynam... Prof. Vincent H. Crespi
Our work on carbon nanotubes covers a very wide range of systems and physical phenomena. In terms of structural properties, carbon nanotubes are one of the most anisotropic materials known: in the axi... Prof. Vincent H. Crespi
Nanoclusters are novel building blocks for structured materials. We study the structural, electronic, and vibrational properties of Ti8C12 metallocarbohedrynes. Density Functional Theory (DFT) calcula... Prof. Jorge O. Sofo
My research focuses on epitaxial growth and fabrication of novel nanostructures and low dimensional systems using physical vapor deposition and semiconductor device fabrication techniques; creating an... Xia Hong
Phase transition studies, particularly quantum fluids and solids at cryogenic temperatures, in reduced dimensionalities and in the presence of disorder. Prof. Chan's research group is also involved wi... Prof. Moses H. W. Chan
When we want to make a machine, we normally buy some nuts and bolts and parts and screw everything together. Nature works differently- biological "machines" assemble themselves. The intrinsic interact... Prof. Vincent H. Crespi
Learn more about my research at my group website. Prof. Nitin Samarth
The properties of molecules, biological macro-molecules, artificial nanostructures, surfaces, and bulk materials are the emergent behavior of interaction between atoms. Quantum mechanics provides a ve... Prof. Jorge O. Sofo
What are the higher-order spin-orbit corrections to the band structure of a semiconductor as derived from the Dirac equation? Are they large enough to produce noticeable decoherence in semicondu... Ryan S. Woodworth
Ab-initio molecular dynamics is used to predict the proton conduction mechanisms in water at the (110) surface of TiO2. In addition to the Grotthuss mechanism present in bulk water, we determined effe... Prof. Jorge O. Sofo
This project studies various multiband effects in the new (Tc ~40 K) MgB2 superconductor with varying degrees of scattering. Prof. Qi Li
We are trying to understand the dynamics and reactivity of water and ions in solution on the surface of metal oxides. The liquid region close to the surface, called electrical double layer, is formed ... Prof. Jorge O. Sofo
A description of the physisorption and subsequent chemisorption of water on silica glass surfaces is presented that combines electronic structure calculations with classical molecular dynamics simulat... Prof. Jorge O. Sofo
Our current research is in to the behavior of 2D plasmons, 2D electronic behavior, and 2D magnetic behavior in specially prepared surfaces and thin films. Prof. Roy F. Willis
Chan's group is currently interested in investigating the effects of quantum fluctuations on the electrical properties of one dimensional superconducting nanowires(with diameters from sub-10nm to 100n... Prof. Moses H. W. Chan Dr. MingLiang Tian
While the theory of carbon nanotubes is the initial leitmotiv of my research in theoretical condensed matter, results and interests have driven me away from those boundaries, as in the case of what ... Cristiano Nisoli
Professor Zhu's research effort focuses on investigating the electronic properties of mesoscopic and nanometer scale structures, combining electric transport measurements and scanned probe studies. Jun Zhu
Phase transition studies, particularly quantum fluids and solids at cryogenic temperatures, in reduced dimensionalities and in the presence of disorder. Prof. Chan's research group is also involved wi... Prof. Moses H. W. Chan
Learn more about my research at my group website. Prof. Nitin Samarth
This project explores the effect of spin injection into non-magnetic systems and study the effect of nonequalibrium spins on various physical properties and spin diffusion, which is an important eleme... Prof. Qi Li
Unique among the elements, carbon can bond to itself to form extremely strong two-dimensional sheets. Since we live in a three-dimensional world, these sheets can be rolled and folded into a diverse... Prof. Vincent H. Crespi
Our current research is in to the behavior of 2D plasmons, 2D electronic behavior, and 2D magnetic behavior in specially prepared surfaces and thin films. Prof. Roy F. Willis
Pristine carbon nanotubes can be metallic or semiconducting, depending precisely on how the graphene sheet has been wrapped up to form the tube. If the highest-energy electronic states of graphene can... Prof. Vincent H. Crespi
Professor Zhu's research effort focuses on investigating the electronic properties of mesoscopic and nanometer scale structures, combining electric transport measurements and scanned probe studies. Jun Zhu
Even the smallest lithographically-defined transistor is still huge when compared to a single molecule. It is possible to obtain highly nonlinear electronic behavior from a single molecule, when one t... Prof. Vincent H. Crespi
The ultimate size limit for functional devices is the single molecule. Biology is built upon an extraordinarily rich set of molecular-scale devices, such as DNA (information storage), membrane protein... Prof. Vincent H. Crespi
Our work on carbon nanotubes covers a very wide range of systems and physical phenomena. In terms of structural properties, carbon nanotubes are one of the most anisotropic materials known: in the axi... Prof. Vincent H. Crespi
The properties of molecules, biological macro-molecules, artificial nanostructures, surfaces, and bulk materials are the emergent behavior of interaction between atoms. Quantum mechanics provides a ve... Prof. Jorge O. Sofo
See my research group website for further information. Prof. Paul S. Weiss
Imagine one had a colloidal solution of A spheres, into which one introduces a small concentration of B spheres. The B spheres are significantly smaller than the A spheres. There is a strong A-B attra... Prof. Vincent H. Crespi
Helium adsorbed onto carbon nanotube bundles can exhibit novel low-dimensional phases, ranging from nearly free-particle like behavior to strongly localized phases. The hard-core interaction between a... Prof. Vincent H. Crespi
Carbon nanotubes are actually a special case of a more general structure, the carbon nanocones. A nanotube can be though of as a cone with six pentagonal rings in the endcap; these six pentagons induc... Prof. Vincent H. Crespi Dr. Paul E. Lammert
Unique among the elements, carbon can bond to itself to form extremely strong two-dimensional sheets. Since we live in a three-dimensional world, these sheets can be rolled and folded into a diverse... Prof. Vincent H. Crespi
The Cole group is investigating various phenomena at surfaces. The current focus includes these topics: wetting transitions of liquid films on weakly-attractive surfaces, adsorption on patterned surfa... Prof. Milton W. Cole
It is well know that most objects obey Hooke's law, F = kX. Our project is to design a material that gives F = CONST. In another word, the tension force is independent of the deformation of the objec... Youjian Tang
Our current research is in to the behavior of 2D plasmons, 2D electronic behavior, and 2D magnetic behavior in specially prepared surfaces and thin films. Prof. Roy F. Willis
We devised two Structural Genetic Algorithms to perform global optimizations for the energy of interacting dipoles on a cylinder, which mimics the adsorption of alkali atoms in carbon nanotubes. Whi... Prof. Vincent H. Crespi Cristiano Nisoli
A system of repulsive particles constrained on a cylindrical surface has a surprisingly rich set of ground states. While its statics is described by the laws of Phyllotaxis (Levitov 1990), we have fou... Prof. Vincent H. Crespi Cristiano Nisoli Dr. Paul E. Lammert
Chan's group is currently interested in investigating the effects of quantum fluctuations on the electrical properties of one dimensional superconducting nanowires(with diameters from sub-10nm to 100n... Prof. Moses H. W. Chan Dr. MingLiang Tian
We engineer geometrically frustrated lattices of nano-magnets to build novel frustrated magnetic materials using electron beam lithography, and to study their thermodynamic properties. Artificial s... Prof. Vincent H. Crespi Cristiano Nisoli
Electronic states localized at the surface of oxide semiconductors are a common cause of their low ionization potential. We study the properties of these surface states using density functional theory... Prof. Jorge O. Sofo Ning Shen
As recent experimental results show (see B. K. Pradhan at al, J. Mater. Res. 17, 2209 – 2216 (2002)), a roughened graphitic surface can exhibit an enhancement in hydrogen adsorption. We have applied a... Prof. Vincent H. Crespi
A self-assembled crystal formed from nanoscale components, perhaps just simple monodisperse (i.e. same-sized) spheres, forms a framework into which one could infiltrate a wide range of materials. Of p... Prof. Vincent H. Crespi
Professor Zhu's research effort focuses on investigating the electronic properties of mesoscopic and nanometer scale structures, combining electric transport measurements and scanned probe studies. Jun Zhu
Research focus is on colossal magnetoresistance materials, in which we have found an unusually large low field magnetoresistance effect in the strained manganite ultrathin films and nanobridges, and l... Prof. Qi Li
Our research is best described as materials theory, broadly defined. We use a variety of techniques chosen to suit the problem at hand, ranging from first-principles density functional theory to dynam... Prof. Vincent H. Crespi
Graphenic sheets of carbon atoms are extremely resilient against distortions in the local bonding, to a carbon nanocone can be dramatically deformed away from its equilibrium structure. If pressed fro... Prof. Vincent H. Crespi
The fundamental elements of a mechanical rotary motor are a base, an axle, and a rotor arm of some kind. We are modelling motors formed from single molecules that build in each of these three elements... Prof. Vincent H. Crespi
Nanoporous carbon is formed when a carbon-containing materials (which could be as simple as sugar) is pyrolyzed (i.e. heated up in an inert atmosphere). During this process, gases escape from the stru... Prof. Vincent H. Crespi
Our work on carbon nanotubes covers a very wide range of systems and physical phenomena. In terms of structural properties, carbon nanotubes are one of the most anisotropic materials known: in the axi... Prof. Vincent H. Crespi
This project studies the growth and electrical, magnetic, thermoelectric, and nonlinear oxide thin films and multilayer structures. The emphasis is on functional materials that show unusual properties... Prof. Qi Li
A longstanding concern in materials theory has been the structure prediction problem: given a set of defined constituents, what is their preferred crystal structure? We have implemented a genetic-base... Prof. Vincent H. Crespi
Nanoclusters are novel building blocks for structured materials. We study the structural, electronic, and vibrational properties of Ti8C12 metallocarbohedrynes. Density Functional Theory (DFT) calcula... Prof. Jorge O. Sofo
Assembly of nanoscale materials and their applications to interesting problems in chemistry and physics, including solar energy conversion, nanoscale electronics, electrocatalysis, and mesoscopic phen... Prof. Thomas E. Mallouk
My research focuses on epitaxial growth and fabrication of novel nanostructures and low dimensional systems using physical vapor deposition and semiconductor device fabrication techniques; creating an... Xia Hong
Phase transition studies, particularly quantum fluids and solids at cryogenic temperatures, in reduced dimensionalities and in the presence of disorder. Prof. Chan's research group is also involved wi... Prof. Moses H. W. Chan
When we want to make a machine, we normally buy some nuts and bolts and parts and screw everything together. Nature works differently- biological "machines" assemble themselves. The intrinsic interact... Prof. Vincent H. Crespi
We have devised a two-field model for grahphene and carbon nanotubes that can describe a wealth of phenomena inaccessible to the na"ive continuum approach used until now, such as optical bands in g... Prof. Vincent H. Crespi Cristiano Nisoli
Learn more about my research at my group website. Prof. Nitin Samarth
The properties of molecules, biological macro-molecules, artificial nanostructures, surfaces, and bulk materials are the emergent behavior of interaction between atoms. Quantum mechanics provides a ve... Prof. Jorge O. Sofo
If in nanotubes, instead of sp2 carbon, three-fold coordinated by other carbons, sp3 carbon is used as building element (the sp3 bonded carbon can assume the same topology as sp2, so long as the fourt... Prof. Vincent H. Crespi
Why is a bar magnet shaped like a bar? Because a ferromagnetic material prefers not to terminate magnetic lines of force in a free surface. Remember that the south pole of one magnet is attracted to t... Prof. Vincent H. Crespi
See my research group website for further information. Prof. Paul S. Weiss
Nanoporous carbon is a primarily sp2 carbon system wherein the carbon sheets are rolled and wrapped into a complex holey structure with pores on the order of 1 nm in diameter. Might it be possible, if... Prof. Vincent H. Crespi
Helium adsorbed onto carbon nanotube bundles can exhibit novel low-dimensional phases, ranging from nearly free-particle like behavior to strongly localized phases. The hard-core interaction between a... Prof. Vincent H. Crespi
Not all nanotubes are made from carbon! One closely related family are the boron nitride nanotubes. Boron is one to the left on the periodic table from carbon and nitrogen is one to the right. Therefo... Prof. Vincent H. Crespi
Carbon nanotubes are actually a special case of a more general structure, the carbon nanocones. A nanotube can be though of as a cone with six pentagonal rings in the endcap; these six pentagons induc... Prof. Vincent H. Crespi Dr. Paul E. Lammert
Unique among the elements, carbon can bond to itself to form extremely strong two-dimensional sheets. Since we live in a three-dimensional world, these sheets can be rolled and folded into a diverse... Prof. Vincent H. Crespi
We devised two Structural Genetic Algorithms to perform global optimizations for the energy of interacting dipoles on a cylinder, which mimics the adsorption of alkali atoms in carbon nanotubes. Whi... Prof. Vincent H. Crespi Cristiano Nisoli
Using a self-consistent tight-binding model we studied the radial charge distribution in a bromine-doped double-walled carbon nanotube system. Our results confirm recent Raman measurements that most o... Prof. Vincent H. Crespi Cristiano Nisoli
The role of electron phase in carbon nanocones is truly fascinating. As a low-energy electronic state circuits the apex of the cone, the phase of the wavefunction experiences a mismatch, and different... Prof. Vincent H. Crespi Dr. Paul E. Lammert
Pristine carbon nanotubes can be metallic or semiconducting, depending precisely on how the graphene sheet has been wrapped up to form the tube. If the highest-energy electronic states of graphene can... Prof. Vincent H. Crespi
C60, a round soccer-ball shaped molecule of sixty carbon atoms, was the first of the fullerenes to be discovered. C60 is a fascinating material. When crystallized with ball centers on a face-centered ... Prof. Vincent H. Crespi
While the theory of carbon nanotubes is the initial leitmotiv of my research in theoretical condensed matter, results and interests have driven me away from those boundaries, as in the case of what ... Cristiano Nisoli
As recent experimental results show (see B. K. Pradhan at al, J. Mater. Res. 17, 2209 – 2216 (2002)), a roughened graphitic surface can exhibit an enhancement in hydrogen adsorption. We have applied a... Prof. Vincent H. Crespi
Professor Zhu's research effort focuses on investigating the electronic properties of mesoscopic and nanometer scale structures, combining electric transport measurements and scanned probe studies. Jun Zhu
Graphenic sheets of carbon atoms are extremely resilient against distortions in the local bonding, to a carbon nanocone can be dramatically deformed away from its equilibrium structure. If pressed fro... Prof. Vincent H. Crespi
Nanoporous carbon is formed when a carbon-containing materials (which could be as simple as sugar) is pyrolyzed (i.e. heated up in an inert atmosphere). During this process, gases escape from the stru... Prof. Vincent H. Crespi
Build up a nanotube model by combining Silicon-Hydrogen and Silicon-Bromine tubes. I am right now calculating its band structure. And what will bring about if a silicon atom is replaced by a phosphoru... Zhaohui Huang
Our work on carbon nanotubes covers a very wide range of systems and physical phenomena. In terms of structural properties, carbon nanotubes are one of the most anisotropic materials known: in the axi... Prof. Vincent H. Crespi
We have devised a two-field model for grahphene and carbon nanotubes that can describe a wealth of phenomena inaccessible to the na"ive continuum approach used until now, such as optical bands in g... Prof. Vincent H. Crespi Cristiano Nisoli
If in nanotubes, instead of sp2 carbon, three-fold coordinated by other carbons, sp3 carbon is used as building element (the sp3 bonded carbon can assume the same topology as sp2, so long as the fourt... Prof. Vincent H. Crespi
Different aspects of a carbon nanotube system can have dramatically disparate structural and mechanical properties: axial stretching of a single-walled tube is extremely difficult, but axial sliding o... Prof. Vincent H. Crespi
When doped with alkali atoms, solid C60 becomes a superconductor at surprisingly high temperatures. The detailed properties of this superconductor, and most particularly why the repulsion between ele... Prof. Vincent H. Crespi
Nanoporous carbon is a primarily sp2 carbon system wherein the carbon sheets are rolled and wrapped into a complex holey structure with pores on the order of 1 nm in diameter. Might it be possible, if... Prof. Vincent H. Crespi
In our recent work we looked at the details of the nanotube alignment on a graphitic substrate. We discovered that the interaction of a one-dimensional tube with a two-dimensional substrate leads to a... Prof. Vincent H. Crespi
Using a self-consistent tight-binding model we studied the radial charge distribution in a bromine-doped double-walled carbon nanotube system. Our results confirm recent Raman measurements that most o... Prof. Vincent H. Crespi Cristiano Nisoli
Clever chemists have determined how to transfer unusual stoichiometries and bond geometries from novel CVD precursor molecules into the solid state. We are applying these advances to the design of new... Prof. Vincent H. Crespi
When we want to make a machine, we normally buy some nuts and bolts and parts and screw everything together. Nature works differently- biological "machines" assemble themselves. The intrinsic interact... Prof. Vincent H. Crespi
Learn more about my research at my group website. Prof. Nitin Samarth
The properties of molecules, biological macro-molecules, artificial nanostructures, surfaces, and bulk materials are the emergent behavior of interaction between atoms. Quantum mechanics provides a ve... Prof. Jorge O. Sofo
Electronic states localized at the surface of oxide semiconductors are a common cause of their low ionization potential. We study the properties of these surface states using density functional theory... Prof. Jorge O. Sofo Ning Shen
Research focus is on colossal magnetoresistance materials, in which we have found an unusually large low field magnetoresistance effect in the strained manganite ultrathin films and nanobridges, and l... Prof. Qi Li
We have recently developed a method to calculate the chemical reactivity of a surface with respect to water dissociation. The method is based on one calculation of the electronic states and provides a... Prof. Jorge O. Sofo
This project studies the growth and electrical, magnetic, thermoelectric, and nonlinear oxide thin films and multilayer structures. The emphasis is on functional materials that show unusual properties... Prof. Qi Li
This project explores the effect of spin injection into non-magnetic systems and study the effect of nonequalibrium spins on various physical properties and spin diffusion, which is an important eleme... Prof. Qi Li
Ab-initio molecular dynamics is used to predict the proton conduction mechanisms in water at the (110) surface of TiO2. In addition to the Grotthuss mechanism present in bulk water, we determined effe... Prof. Jorge O. Sofo
We are trying to understand the dynamics and reactivity of water and ions in solution on the surface of metal oxides. The liquid region close to the surface, called electrical double layer, is formed ... Prof. Jorge O. Sofo
A description of the physisorption and subsequent chemisorption of water on silica glass surfaces is presented that combines electronic structure calculations with classical molecular dynamics simulat... Prof. Jorge O. Sofo
Just as electrons in the periodic potential of a crystalline lattice have a modified energy spectrum, leading to forbidden ranges of energy in semiconductors wherein there are no electronic states, s... Prof. Vincent H. Crespi
Unlike a crystal, which is composed of discrete atoms, a photonic bandstructure material is a continuous dielectric distribution. Therefore, one can continuously optimize the structure to maximize a f... Prof. Vincent H. Crespi
Due to the richness of the dispersion relation inside photonic crystals, they can display many anomalous refractive properties. For example, their optical indices can be less than one or even negativ... Prof. Vincent H. Crespi
The body of experimental work on semiconductor quantum well lasers grows rapidly, but without a corresponding theoretical consensus on how the microscopic electro-optical behavior deviates from an ide... Ryan S. Woodworth
Learn more about my research at my group website. Prof. Nitin Samarth
I am interested in using atoms to address basic problems of physics. This can be accomplished with precise measurements of fundamental constants, with tests of fundamental symmetries, and by using ato... Prof. David S. Weiss
We are building a quantum computation experiment based on a 4.9 micron spaced optical lattice. We have shown that atoms in this lattice can independently observed and addressed, so that each functio... Prof. David S. Weiss Xiao Li
When N ≥ 3 electrons are confined in quantum dots, what nonlinear effects arise in the coupling of their spins as compared to N = 2? What implications does this have for the possible use of said s... Ryan S. Woodworth
I am generally interested in the use of ultracold atomic gases to study many-body phenomena. I am currently building an experimental apparatus to study fermionic atoms confined in an optical lattic... Prof. Kenneth M. O'Hara
Learn more about my research at my group website. Prof. Nitin Samarth
What are the higher-order spin-orbit corrections to the band structure of a semiconductor as derived from the Dirac equation? Are they large enough to produce noticeable decoherence in semicondu... Ryan S. Woodworth
Contemporary condensed matter and materials physics, focusing on superconductivity and other collective phenomena in oxides such as Sr2RuO4, nanostructures, particularly disordered ones, and disordere... Prof. Ying Liu
Unique among the elements, carbon can bond to itself to form extremely strong two-dimensional sheets. Since we live in a three-dimensional world, these sheets can be rolled and folded into a diverse... Prof. Vincent H. Crespi
Condensed Matter Research Conor Puls
Our current research is in to the behavior of 2D plasmons, 2D electronic behavior, and 2D magnetic behavior in specially prepared surfaces and thin films. Prof. Roy F. Willis
We predict the stability of a new extended two-dimensional hydrocarbon on the basis of first-principles total energy calculations. The compound that we call graphane is a fully saturated hydrocarbon d... Prof. Jorge O. Sofo
Clever chemists have determined how to transfer unusual stoichiometries and bond geometries from novel CVD precursor molecules into the solid state. We are applying these advances to the design of new... Prof. Vincent H. Crespi
Our work on carbon nanotubes covers a very wide range of systems and physical phenomena. In terms of structural properties, carbon nanotubes are one of the most anisotropic materials known: in the axi... Prof. Vincent H. Crespi
When N ≥ 3 electrons are confined in quantum dots, what nonlinear effects arise in the coupling of their spins as compared to N = 2? What implications does this have for the possible use of said s... Ryan S. Woodworth
Assembly of nanoscale materials and their applications to interesting problems in chemistry and physics, including solar energy conversion, nanoscale electronics, electrocatalysis, and mesoscopic phen... Prof. Thomas E. Mallouk
The body of experimental work on semiconductor quantum well lasers grows rapidly, but without a corresponding theoretical consensus on how the microscopic electro-optical behavior deviates from an ide... Ryan S. Woodworth
Learn more about my research at my group website. Prof. Nitin Samarth
What are the higher-order spin-orbit corrections to the band structure of a semiconductor as derived from the Dirac equation? Are they large enough to produce noticeable decoherence in semicondu... Ryan S. Woodworth
See my research group website for further information. Prof. Paul S. Weiss
The remarkable progress in molecular biology has lead to a complete map of the building blocks of life. The next major challenge is to understand the interactions between the myriad of sub-cellular co... Prof. Reka Albert
The Cole group is investigating various phenomena at surfaces. The current focus includes these topics: wetting transitions of liquid films on weakly-attractive surfaces, adsorption on patterned surfa... Prof. Milton W. Cole
Our current research is in to the behavior of 2D plasmons, 2D electronic behavior, and 2D magnetic behavior in specially prepared surfaces and thin films. Prof. Roy F. Willis
While the theory of carbon nanotubes is the initial leitmotiv of my research in theoretical condensed matter, results and interests have driven me away from those boundaries, as in the case of what ... Cristiano Nisoli
Many complex systems have an underlying network (graph) structure. Here the components of the system become the nodes of the network, while the interactions between components become edges. The topolo... Prof. Reka Albert
The properties of molecules, biological macro-molecules, artificial nanostructures, surfaces, and bulk materials are the emergent behavior of interaction between atoms. Quantum mechanics provides a ve... Prof. Jorge O. Sofo
Statistical measures and distributions can be used to distinguish between different types of network topologies. Diverse large-scale networks like the World-Wide Web, Internet, or social networks sho... Prof. Reka Albert
We are trying to understand the dynamics and reactivity of water and ions in solution on the surface of metal oxides. The liquid region close to the surface, called electrical double layer, is formed ... Prof. Jorge O. Sofo
A description of the physisorption and subsequent chemisorption of water on silica glass surfaces is presented that combines electronic structure calculations with classical molecular dynamics simulat... Prof. Jorge O. Sofo
Understanding transport along the edge of quantum Hall systems. Long wavelength excitation in quantum Hall systems. Phase diagram of bilayer quantum Hall systems etc. Shivakumar Jolad
Professor Zhu's research effort focuses on investigating the electronic properties of mesoscopic and nanometer scale structures, combining electric transport measurements and scanned probe studies. Jun Zhu
Research focus is on colossal magnetoresistance materials, in which we have found an unusually large low field magnetoresistance effect in the strained manganite ultrathin films and nanobridges, and l... Prof. Qi Li
This project studies the growth and electrical, magnetic, thermoelectric, and nonlinear oxide thin films and multilayer structures. The emphasis is on functional materials that show unusual properties... Prof. Qi Li
I am generally interested in the use of ultracold atomic gases to study many-body phenomena. I am currently building an experimental apparatus to study fermionic atoms confined in an optical lattic... Prof. Kenneth M. O'Hara
Learn more about my research at my group website. Prof. Nitin Samarth
The properties of molecules, biological macro-molecules, artificial nanostructures, surfaces, and bulk materials are the emergent behavior of interaction between atoms. Quantum mechanics provides a ve... Prof. Jorge O. Sofo
This project explores the effect of spin injection into non-magnetic systems and study the effect of nonequalibrium spins on various physical properties and spin diffusion, which is an important eleme... Prof. Qi Li
We devised two Structural Genetic Algorithms to perform global optimizations for the energy of interacting dipoles on a cylinder, which mimics the adsorption of alkali atoms in carbon nanotubes. Whi... Prof. Vincent H. Crespi Cristiano Nisoli
We predict the stability of a new extended two-dimensional hydrocarbon on the basis of first-principles total energy calculations. The compound that we call graphane is a fully saturated hydrocarbon d... Prof. Jorge O. Sofo
Graphenic sheets of carbon atoms are extremely resilient against distortions in the local bonding, to a carbon nanocone can be dramatically deformed away from its equilibrium structure. If pressed fro... Prof. Vincent H. Crespi
The fundamental elements of a mechanical rotary motor are a base, an axle, and a rotor arm of some kind. We are modelling motors formed from single molecules that build in each of these three elements... Prof. Vincent H. Crespi
Our work on carbon nanotubes covers a very wide range of systems and physical phenomena. In terms of structural properties, carbon nanotubes are one of the most anisotropic materials known: in the axi... Prof. Vincent H. Crespi
This project studies the growth and electrical, magnetic, thermoelectric, and nonlinear oxide thin films and multilayer structures. The emphasis is on functional materials that show unusual properties... Prof. Qi Li
Phase transition studies, particularly quantum fluids and solids at cryogenic temperatures, in reduced dimensionalities and in the presence of disorder. Prof. Chan's research group is also involved wi... Prof. Moses H. W. Chan
When we want to make a machine, we normally buy some nuts and bolts and parts and screw everything together. Nature works differently- biological "machines" assemble themselves. The intrinsic interact... Prof. Vincent H. Crespi
The properties of molecules, biological macro-molecules, artificial nanostructures, surfaces, and bulk materials are the emergent behavior of interaction between atoms. Quantum mechanics provides a ve... Prof. Jorge O. Sofo
If in nanotubes, instead of sp2 carbon, three-fold coordinated by other carbons, sp3 carbon is used as building element (the sp3 bonded carbon can assume the same topology as sp2, so long as the fourt... Prof. Vincent H. Crespi
Different aspects of a carbon nanotube system can have dramatically disparate structural and mechanical properties: axial stretching of a single-walled tube is extremely difficult, but axial sliding o... Prof. Vincent H. Crespi
In our recent work we looked at the details of the nanotube alignment on a graphitic substrate. We discovered that the interaction of a one-dimensional tube with a two-dimensional substrate leads to a... Prof. Vincent H. Crespi
The copper oxide superconductors are one of the most unusual new classes of materials to be discovered in the past few decades. These materials become superconducting at very high temperatures (relati... Prof. Vincent H. Crespi
Chan's group is currently interested in investigating the effects of quantum fluctuations on the electrical properties of one dimensional superconducting nanowires(with diameters from sub-10nm to 100n... Prof. Moses H. W. Chan Dr. MingLiang Tian
Palladium hydride is a superconductor and interestingly enough, the transition temperature for the deuterated system is actually higher than that of the hydrogenated system. This is the reverse of the... Prof. Vincent H. Crespi
Contemporary condensed matter and materials physics, focusing on superconductivity and other collective phenomena in oxides such as Sr2RuO4, nanostructures, particularly disordered ones, and disordere... Prof. Ying Liu
Assembly of nanoscale materials and their applications to interesting problems in chemistry and physics, including solar energy conversion, nanoscale electronics, electrocatalysis, and mesoscopic phen... Prof. Thomas E. Mallouk
Phase transition studies, particularly quantum fluids and solids at cryogenic temperatures, in reduced dimensionalities and in the presence of disorder. Prof. Chan's research group is also involved wi... Prof. Moses H. W. Chan
This project explores the effect of spin injection into non-magnetic systems and study the effect of nonequalibrium spins on various physical properties and spin diffusion, which is an important eleme... Prof. Qi Li
When doped with alkali atoms, solid C60 becomes a superconductor at surprisingly high temperatures. The detailed properties of this superconductor, and most particularly why the repulsion between ele... Prof. Vincent H. Crespi
Nanoporous carbon is a primarily sp2 carbon system wherein the carbon sheets are rolled and wrapped into a complex holey structure with pores on the order of 1 nm in diameter. Might it be possible, if... Prof. Vincent H. Crespi
Superconductivity is one of the more striking physical phenomena in condensed matter physics. As metallic samples are cooled, the electrons within move more slowly and become more and more ordered. In... Prof. Vincent H. Crespi
My research focusses on unresolved problems that connect cosmology to quantum gravity (such as String Theory and Loop Quantm Gravity) and the standard field theoretic model of elementray particles. I... Stephon H. S. Alexander
This project studies various multiband effects in the new (Tc ~40 K) MgB2 superconductor with varying degrees of scattering. Prof. Qi Li
Helium adsorbed onto carbon nanotube bundles can exhibit novel low-dimensional phases, ranging from nearly free-particle like behavior to strongly localized phases. The hard-core interaction between a... Prof. Vincent H. Crespi
The Cole group is investigating various phenomena at surfaces. The current focus includes these topics: wetting transitions of liquid films on weakly-attractive surfaces, adsorption on patterned surfa... Prof. Milton W. Cole
Our current research is in to the behavior of 2D plasmons, 2D electronic behavior, and 2D magnetic behavior in specially prepared surfaces and thin films. Prof. Roy F. Willis
Electronic states localized at the surface of oxide semiconductors are a common cause of their low ionization potential. We study the properties of these surface states using density functional theory... Prof. Jorge O. Sofo Ning Shen
We have recently developed a method to calculate the chemical reactivity of a surface with respect to water dissociation. The method is based on one calculation of the electronic states and provides a... Prof. Jorge O. Sofo
Metallic nanoclusters on semiconductors are important for applications in nanoelectronics, catalysis, solar cells, and for study of the novel phenomena created by geometrical restrictions. To study th... Prof. Jorge O. Sofo
The properties of molecules, biological macro-molecules, artificial nanostructures, surfaces, and bulk materials are the emergent behavior of interaction between atoms. Quantum mechanics provides a ve... Prof. Jorge O. Sofo
See my research group website for further information. Prof. Paul S. Weiss
Ab-initio molecular dynamics is used to predict the proton conduction mechanisms in water at the (110) surface of TiO2. In addition to the Grotthuss mechanism present in bulk water, we determined effe... Prof. Jorge O. Sofo
We are trying to understand the dynamics and reactivity of water and ions in solution on the surface of metal oxides. The liquid region close to the surface, called electrical double layer, is formed ... Prof. Jorge O. Sofo
A description of the physisorption and subsequent chemisorption of water on silica glass surfaces is presented that combines electronic structure calculations with classical molecular dynamics simulat... Prof. Jorge O. Sofo
The copper oxide superconductors are one of the most unusual new classes of materials to be discovered in the past few decades. These materials become superconducting at very high temperatures (relati... Prof. Vincent H. Crespi
Our current research is in to the behavior of 2D plasmons, 2D electronic behavior, and 2D magnetic behavior in specially prepared surfaces and thin films. Prof. Roy F. Willis
A system of repulsive particles constrained on a cylindrical surface has a surprisingly rich set of ground states. While its statics is described by the laws of Phyllotaxis (Levitov 1990), we have fou... Prof. Vincent H. Crespi Cristiano Nisoli Dr. Paul E. Lammert
We predict the stability of a new extended two-dimensional hydrocarbon on the basis of first-principles total energy calculations. The compound that we call graphane is a fully saturated hydrocarbon d... Prof. Jorge O. Sofo
Using Raman spectrometer to study the adsorption of hydrogen molecules on MOF material. Bei Wang
Palladium hydride is a superconductor and interestingly enough, the transition temperature for the deuterated system is actually higher than that of the hydrogenated system. This is the reverse of the... Prof. Vincent H. Crespi
Sure, but only with an unusual interatomic force law. The usual linear dispersion arises from the default equation of motion for a lattice of masses connected by springs which in the continuum li... Prof. Vincent H. Crespi
Our work on carbon nanotubes covers a very wide range of systems and physical phenomena. In terms of structural properties, carbon nanotubes are one of the most anisotropic materials known: in the axi... Prof. Vincent H. Crespi
Nanoclusters are novel building blocks for structured materials. We study the structural, electronic, and vibrational properties of Ti8C12 metallocarbohedrynes. Density Functional Theory (DFT) calcula... Prof. Jorge O. Sofo
The properties of molecules, biological macro-molecules, artificial nanostructures, surfaces, and bulk materials are the emergent behavior of interaction between atoms. Quantum mechanics provides a ve... Prof. Jorge O. Sofo
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