MAGNETIC-FIELD-INDUCED TRANSITION - FROM AN ANDERSON INSULATOR TO A QUANTUM HALL CONDUCTOR

被引：4

作者：

JIANG, HW ^{[1
]}

JOHNSON, CE ^{[1
]}

WANG, KL ^{[1
]}

HANNAHS, ST ^{[1
]}

机构：

[1] MIT,FRANCIS BITTER NATL MAGNET LAB,CAMBRIDGE,MA 02139

来源：

PHYSICA B | 1994年 / 197卷 / 1-4期

关键词：

D O I：

10.1016/0921-4526(94)90244-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Experimental evidence is presented of a magnetic-field-induced transition from an Anderson insulator at B = 0 to a quantum Hall conductor at finite magnetic field in a disordered two-dimensional electron gas system. We interpret the experimental results as a manifestation of magnetic-field-induced delocalization. The results are in accord with the recently proposed global phase diagram for the quantum Hall effect.

引用

收藏

页码：449 / 456

页数：8

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