NON-FERMI-LIQUID BEHAVIOR OF 2-DIMENSIONAL ELECTRON-GAS WITH DISORDER

被引：32

作者：

EFROS, AL ^{[1
]}

PIKUS, FG ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA, SANTA BARBARA, CA 93106 USA

来源：

SOLID STATE COMMUNICATIONS | 1995年 / 96卷 / 04期

关键词：

QUANTUM WELLS; ELECTRON-ELECTRON INTERACTION; QUANTUM LOCALIZATION;

D O I：

10.1016/0038-1098(95)00469-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The problem of strongly correlated disordered two-dimensional electron gas on a lattice is studied by computer modeling. The long-range Coulomb interaction is assumed. It is proved that for zero hopping amplitude J the lowest residue of the one-particle Green function is zero. It is shown by quantum Monte-Carlo computations that the Coulomb gap in the one-particle density of states exists and the lowest residues remain small for J > 0 and independent of J at the same range of J where, according to other criteria, many-particle wave functions become delocalized.

引用

页码：183 / 187

页数：5

共 11 条

[1] SCALING THEORY OF LOCALIZATION - ABSENCE OF QUANTUM DIFFUSION IN 2 DIMENSIONS [J].