OBSERVATION OF EXTREME FIELD-INDUCED MASS DEVIATIONS IN DOUBLE-QUANTUM WELLS

被引：33

作者：

SIMMONS, JA ^{[1
]}

HARFF, NE ^{[1
]}

KLEM, JF ^{[1
]}

机构：

[1] OREGON STATE UNIV,CORVALLIS,OR 97331

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.51.11156

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Large deviations are measured in the cyclotron effective mass mc near the recently observed partial energy gap arising in strongly coupled GaAs double quantum wells (QW's) subject to in-plane magnetic fields B. The energy gap results from an anticrossing of the two QW dispersion curves, shifted in k space relative to one another by B. The severely distorted dispersion near the gap yields an mc repressed by more than a factor of 3 near the upper gap edge, and enhanced by ∼50% near the lower gap edge. The data show excellent agreement with recent theoretical calculations. © 1995 The American Physical Society.

引用

页码：11156 / 11159

页数：4

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