MAGNETIC-FIELD EFFECTS ON STRONGLY LOCALIZED-ELECTRONS

被引：61

作者：

MEDINA, E ^{[1
]}

KARDAR, M ^{[1
]}

SHAPIR, Y ^{[1
]}

WANG, XR ^{[1
]}

机构：

[1] UNIV ROCHESTER,DEPT PHYS & ASTRON,ROCHESTER,NY 14627

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.64.1816

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic-field response of strongly localized electrons is probed by examining the quantum interference of forward scattering paths. With no disorder, there is a rich structure in the tunneling rate, which is sensitively dependent upon commensurability of the flux per plaquette with the flux quantum. With nonmagnetic impurities, there is a positive magnetoconductance, and the localization length appears to increase as B1/2. With impurities breaking time-reversal symmetry, the distribution of tunneling rates is not changed by the magnetic field. © 1990 The American Physical Society.

引用

页码：1816 / 1819

页数：4

共 18 条

[1] ABSENCE OF DIFFUSION IN CERTAIN RANDOM LATTICES [J].