MAGNETOTRANSPORT OF PIEZOELECTRIC [111] ORIENTED STRAINED QUANTUM-WELLS

被引：16

作者：

MARTIN, RW

LAKRIMI, M

LOPEZ, C

NICHOLAS, RJ

CHIDLEY, ETR

MASON, NJ

WALKER, PJ

机构：

[1] Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, Parks Road

来源：

APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 06期

关键词：

D O I：

10.1063/1.105356

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the first observation of magnetotransport in piezoelectrically active heterostructures. Well-resolved quantum Hall plateaus and magnetoresistance minima are observed for two-dimensional hole gases confined in [111] oriented strained-layer Ga(1-x)In(x)Sb/GaSb quantum wells with a piezoelectric field, of order 1 X 10(5) V/cm. We discuss the enhanced carrier densities induced by the in-built field and the differences observed between [111]A and [111]B orientations. Comparisons are made with simultaneously grown [001] structures. Stark energy shifts observed in photoluminescence are well accounted for by the estimated electric field.

引用

页码：659 / 661

页数：3