INCOHERENT MECHANISM OF NEGATIVE MAGNETORESISTANCE IN THE VARIABLE-RANGE-HOPPING REGIME

被引：41

作者：

RAIKH, ME ^{[1
]}

机构：

[1] TECH UNIV MUNICH,DEPT PHYS E16,W-8046 GARCHING,GERMANY

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 75卷 / 11期

关键词：

D O I：

10.1016/0038-1098(90)90413-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The new mechanism of negative magnetoresistance in the regime of variable-range-hopping conductivity based on the dependence of the activation energy of the hop on magnetic field is proposed. It is shown that the shrinkage of the wave functions of the localized electronic states in magnetic field reducing the repulsion of the energy levels of the neighbouring sites can decrease in average the activation energy of the hop and therefore increase its probablility. © 1990.

引用

页码：935 / 938

页数：4

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