FATE OF THE DELOCALIZED STATES IN A VANISHING MAGNETIC-FIELD

被引：82

作者：

GLOZMAN, I

JOHNSON, CE

JIANG, HW

机构：

[1] Department of Physics, University of California at Los Angeles, Los Angeles

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.74.594

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an experimental study of the fate of the delocalized states as B0 in a disordered two-dimensional electron gas system. Evolving peaks in the longitudinal conductivity xx are used to map out the delocalized states in the density-magnetic-field plane. We demonstrate unambiguously that the energy of the lowest delocalized-state band not only deviates from the "traditional" Landau level center, but also floats up above the Fermi level as B0. © 1995 The American Physical Society.

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页码：594 / 597

页数：4

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