搜索结果: 1-15 共查到“凝聚态物理学 t-J model”相关记录44条 . 查询时间(0.375 秒)
With a little twist and the turn of a voltage knob, Cornell researchers have shown that a single material system can toggle between two of the wildest states in condensed matter physics: the quantum a...
Planckian metals have the potential to power high-temperature superconductors, quantum computers and a host of other next-generation technologies. However, these “strange” metals – in which electrical...
Multi-step magnetization of the Ising model on a Shastry–Sutherland lattice:a Monte Carlo simulation
Multi-step magnetization Ising model Shastry–Sutherland lattice Monte Carlo simulation
2016/12/2
The magnetization behaviors and spin configurations of the classical Ising model on a Shastry-Sutherland lattice are investigated using Monte Carlo simulations, in order to understand the fascinating ...
The Shockley model description of the surface states in topological insulators
Shockley model description surface states topological insulators
2012/2/27
We show that the surface states in topological insulators can be understood based on a well-known Shockley model, a one-dimensional tight-binding model with two atoms per elementary cell, connected vi...
Lifshitz Transition and Quantum Criticality in an Extended Periodic Anderson Model
Lifshitz Transition Quantum Criticality Extended Periodic Anderson Model
2010/11/25
We study the quantum phase transition in f-electron systems as a quantum Lifshitz transition
driven by selective Mott localization in a realistic extended Anderson lattice model. Using DMFT,we find t...
Quantum fluctuations in the effective pseudospin-1/2 model for magnetic pyrochlore oxides
effective pseudospin-1/2 model magnetic pyrochlore oxides
2010/11/25
The e ective quantum pseudospin-1=2 model for interacting rare-earth magnetic moments, which
are locally described with atomic doublets, is studied theoretically for magnetic pyrochlore oxides.It is ...
An One Dimensional Adiabatic Model for Fusion Involving Loosely Bound and Halo Nuclei with Heavy Targets
One Dimensional Adiabatic Model Fusion Involving Loosely Bound Halo Nuclei Heavy Targets
2011/1/7
An one dimensional adiabatic model has been proposed for fusion of loosely bound and halo light
nuclei with various heavy targets. It is shown that fusion cross sections at near and sub-barrier energ...
Transient shear banding in entangled polymers: a study using the Rolie-Poly model
Transient shear banding Rolie-Poly model
2010/11/24
Spatially inhomogeneous shear flow occurs in entangled polymer solutions, both as steady state shear banding and transiently after a large step strain or during start up to a steady uniform shear rate...
Eighth-order phase-field-crystal model for two-dimensional crystallization
Eighth-order phase-field-crystal model two-dimensional crystallization
2010/11/25
We present a derivation of the recently proposed eighth order phase field crystal model [Jaatinen et al. , Phys. Rev. E 80, 031602 (2009)] for the crystallization of a solid from an undercooled melt.
Twisted Hubbard Model for Sr2IrO4: Magnetism and Possible High Temperature Superconductivity
Twisted Hubbard Model for Sr2IrO4 Magnetism Possible High Temperature Superconductivity
2010/11/23
Sr2IrO4 has been suggested as a Mott insulator from a single Jeff = 1/2 band, similar to the
cuprates. However this picture is complicated by the measured large magnetic anisotropy and
ferromagnetis...
New structural model for GeO2/Ge interface: A first-principles study
New structural model for GeO2/Ge interface first-principles study
2010/11/24
First-principles modeling of a GeO2/Ge(001) interface reveals that sixfold GeO2, which is derived from cristobalite and is different from rutile, dramatically reduces the lattice mismatch at the inter...
Coulomb interaction effects and electron spin relaxation in the 1d Kondo lattice model
Ludwig-Maximilians-Universit¨at M¨unchen University of Queensland
2010/11/23
We study the effects of the Coulomb interaction in the one dimensional Kondo lattice model on
the phase diagram, the static magnetic susceptibility and electron spin relaxation. We show that onsite C...
Orbital Order, Metal Insulator Transition, and Magnetoresistance-Effect in the two-orbital Hubbard model
Orbital Order Metal Insulator Transition Magnetoresistance-Effect
2010/11/19
We study the effects of temperature and magnetic field on a two-orbital Hubbard model within
dynamical mean field theory. We focus on the quarter filled system, which is a special point in the phase ...
Effect of anisotropy on the field induced quantum critical properties of the three dimensional s=1/2 Heisenberg model
Effect of anisotropy field induced quantum critical properties
2010/11/18
The field induced quantum critical properties of the three dimensional spin-1/2 anisotropic antifer-romagnetic Heisenberg model has been studied. We have investigated the quantum phase transition betw...
Crystallization of the Lewis-Wahnström ortho-terphenyl model
Crystallization Lewis-Wahnströ m ortho-terphenyl model
2010/11/19
Crystallization is observed during long molecular dynamics simulations of bent trimers, a molecular model proposed by Lewis and Wahnstrom for ortho-terphenyl. In the crystal, the three spheres that m...