ANISOTROPIC VALENCE BANDS IN QUANTUM-WELLS - QUANTITATIVE COMPARISON OF THEORY AND EXPERIMENT

被引：31

作者：

KASH, JA ^{[1
]}

ZACHAU, M ^{[1
]}

TISCHLER, MA ^{[1
]}

EKENBERG, U ^{[1
]}

机构：

[1] ROYAL INST TECHNOL,DEPT THEORET PHYS,S-10044 STOCKHOLM 70,SWEDEN

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.69.2260

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The valence subband dispersion of GaAs/AlGaAs quantum wells is measured with meV accuracy using the recombination of hot electrons at neutral acceptors. This precision, in combination with polarization-dependent matrix elements, allows direct observation and measurement of the warping. The measurements, for in-plane wave vectors which extend over a substantial fraction of the Brillouin zone, are shown to be in very good agreement with k . p calculations.

引用

页码：2260 / 2263

页数：4

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