Deterministic spin models with a glassy phase transitionWe consider the infinite-range deterministic spin models with Hamiltonian H=Σi,j=1N Ji,jσiσj, where J is the quantization of a chaotic map of the torus. The mean field (TAP) equations…I. Borsari, M. Degli esposti, S. Graffi et al.·May 23, 1996SaveLearn
Spontaneous Interlayer Coherence in Double-Layer Quantum Hall Systems: Symmetry Breaking Interactions, In-Plane Fields and Phase SolitonsAt strong magnetic fields double-layer two-dimensional-electron-gas systems can form an unusual broken symmetry state with spontaneous inter-layer phase coherence. The system can be mapped to an…Kun Yang, K. Moon, Lotfi Belkhir et al.·May 23, 1996SaveLearn
Electron and Phonon Thermal Waves in Semiconductors: an Application to Photothermal EffectsThe electron and phonon temperature distribution function are calculated in semiconductors. We solved the coupled one-dimensional heat-diffussion equations in the linear approximation in which the…G. Gonzalez de la Cruz, Yu. G. Gurevich·May 23, 1996SaveLearn
Mean-Field Analysis of Antiferromagnetic Three-State Potts Model with Next Nearest Neighbor InteractionThe three-state Potts model with antiferromagnetic nearest-neighbor (n.n.) and ferromagnetic next-nearest-neighbor (n.n.n) interaction is investigated within a mean-field theory. We find that the…M. Itakura·May 23, 1996SaveLearn
Impurity Effects in Strongly Correlated Metals: Large Pressure Dependence of Residual Resistivity of Heavy FermionsIt is shown on the basis of the Fermi liquid theory that the s-wave scattering potential due to nonmagnetic impurity is strongly enhanced by the mass enhancement factor 1/z. As a result the…Hiroaki Ikeda, Kazumasa Miyake·May 23, 1996SaveLearn
The surface chemistry of metal-oxygen interactions: a first-principles study of O:Rh(110)We report on a computational study of the clean and oxygen-covered Rh(110) surface, based on density-functional theory within the local-density approximation. We have used plane-wave basis sets and…Kurt Stokbro, Stefano Baroni·May 23, 1996SaveLearn
2n Quasihole States Realize 2n-1-Dimensional Spinor Braiding Statistics in Paired Quantum Hall StatesBy explicitly identifying a basis valid for any number of electrons, we demonstrate that simple multi-quasihole wavefunctions for the ν=1/2 Pfaffian paired Hall state exhibit an exponential…Chetan Nayak, Frank Wilczek·May 23, 1996SaveLearn
Persistent Current From the Competition Between Zeeman Coupling and Spin-Orbit InteractionApplying the non-adiabatic Aharonov-Anandan phase approach to a mesoscopic ring with non-interacting many electrons in the presence of the spin-orbit interaction, Zeeman coupling and magnetic flux,…Tie-Zheng Qian, Ya-Sha Yi, Zhao-Bin Su·May 23, 1996SaveLearn
Breit-Wigner width for two interacting particles in one-dimensional random potentialFor two interacting particles (TIP) in one-dimensional random potential the dependence of the Breit-Wigner width Γ, the local density of states and the TIP localization length on system parameters…Ph. Jacquod, D. L. Shepelyansky, O. P. Sushkov·May 22, 1996SaveLearn
High-Frequency Spin Waves in YBa2Cu3O6.15Pulsed neutron spectroscopy is used to make absolute measurements of the dynamic magnetic susceptibility of insulating YBa2Cu3O6.15. Acoustic and optical modes, derived from in- and out-of-phase…S. M. Hayden, G. Aeppli, T. G. Perring et al.·May 22, 1996SaveLearn
Hole and Pair Structures in the t-J modelUsing numerical results from density matrix renormalization group (DMRG) calculations for the t-J model, on systems as large as 10x7, we examine the structure of the one and two hole ground states in…Steven R. White, D. J. Scalapino·May 22, 1996SaveLearn
The Gibbs-Thomson formula at small island sizes - corrections for high vapour densitiesIn this paper we report simulation studies of equilibrium features, namely circular islands on model surfaces, using Monte-Carlo methods. In particular, we are interested in studying the relationship…Badrinarayan Krishnamachari, James McLean, Barbara Cooper et al.·May 22, 1996SaveLearn
A Theory of Anisotropic Semiconductor of Heavy FermionsIt is demonstrated that a -dependence of the hybridization matrix element between f- and conduction electrons can give rise to an anisotropic hybridization gap of heavy fermions if the…Hiroaki Ikeda, Kazumasa Miyake·May 22, 1996SaveLearn
Theory of Magnetocrystalline Anisotropy Energy for Wires and Corrals of Fe adatoms: A Non-Perturbative TheoryThe magnetocrystalline anisotropy energy Eanis for free-standing chains (quantum wires) and rings (quantum corrals) of Fe-adatoms N=(2...48) is determined using an electronic tight-binding…R. Druzinic, W. Hubner·May 22, 1996SaveLearn
Self-Consistent Model of Annihilation-Diffusion Reaction with Long-Range InteractionsWe introduce coarse-grained hydrodynamic equations of motion for diffusion-annihilation system with a power-law long-range interaction. By taking into account fluctuations of the conserved order…Valeriy V. Ginzburg, Leo Radzihovsky, Noel A. Clark·May 21, 1996SaveLearn
On the Thermodynamic Limit in Random Resistors NetworksWe study a random resistors network model on a euclidean geometry Zd. We formulate the model in terms of a variational principle and show that, under appropriate boundary conditions, the…F. Guerra, M. Talevi·May 21, 1996SaveLearn
Symmetrized PQMC Studies of the ground state of C60We develop a new symmetrized version of the Projector Quantum Monte Carlo (SPQMC) method which preserves the symmetries of the system by simultaneously sampling all symmetry related Ising…Bhargavi Srinivasan, S. Ramasesha, H. R. Krishnamurthy·May 21, 1996SaveLearn
Two-Channel Kondo Model as a Fixed Point of Local Electron-Phonon Coupling SystemIt is shown on the basis of the multiplicative renormalization-group method of two-loop order that the low-energy effective Hamiltonian of a strongly coupled local electron-phonon system is mapped to…Hiroaki Kusunose, Kazumasa Miyake·May 21, 1996SaveLearn
Strong Electron Tunneling through a Small Metallic GrainElectron tunneling through mesoscopic metallic grains can be treated perturbatively only provided the tunnel junction conductances are sufficiently small. If it is not the case, fluctuations of the…D. S. Golubev, A. D. Zaikin·May 21, 1996SaveLearn
Finite temperature properties of the gauge theory of nonrelativistic fermionsWe study the finite temperature properties of the gauge theory of nonrelativistic fermions by using RPA and ladder approximation. This gauge theory is relevant to two interesting systems: high-Tc…M. Onoda, I. Ichinose, T. Matsui·May 21, 1996SaveLearn
Conductance through a Magnetic Domain Wall in Double Exchange SystemThe conductance through a magnetic domain wall is calculated for the double exchange system as a function of energy and the width of the domain wall. It is shown that when the carrier density is low…Masanori Yamanaka, Naoto Nagaosa·May 21, 1996SaveLearn
Chiral Lyotropic Liquid Crystals: TGB Phases and Helicoidal StructuresThe molecules in lyotropic membranes are typically aligned with the surface normal. When these molecules are chiral, there is a tendency for the molecular direction to twist. These competing effects…Randall D. Kamien, T. C. Lubensky·May 20, 1996SaveLearn
Directed lines in sparse potentialsWe present a continuum formulation of a (d+1)-dimensional directed line interacting with sparse potentials (i.e. d-dimensional potentials defined only at discrete longitudinal locations.) An…T. J. Newman, A. J. McKane·May 20, 1996SaveLearn
Diffusion on a stepped substrateWe present results for collective diffusion of adatoms on a stepped substrate with a submonolayer coverage. We study the combined effect of the additional binding at step edge, the Schwoebel barrier,…Juha Merikoski, See-Chen Ying·May 20, 1996SaveLearn
The Onset of Chaos in the Quantum Hard-Sphere GasWe show that the condition for the appearance of quantum chaos (Wigner-Dyson distribution of energy eigenvalues, gaussian-random energy eigenfunctions) in a dilute gas of many hard spheres is $λ…Mark Srednicki·May 20, 1996SaveLearn