EXCHANGE AND CORRELATION IN QUASI-2-DIMENSIONAL PLASMAS IN QUANTUM-WELL STRUCTURES

被引：0

作者：

GAMMON, D

SHANABROOK, BV

RYAN, JC

BROZAK, G

KATZER, DS

机构：

[1] Naval Research Laboratory, Washington

来源：

SURFACE SCIENCE | 1992年 / 263卷 / 1-3期

关键词：

D O I：

10.1016/0039-6028(92)90391-I

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present a comparison of experiment and theory of the intersubband excitations in GaAs/AlGaAs quantum well structures. We find that at moderate densities, calculations employing the local spin density approximation for exchange and correlation Coulomb interactions agree well with experimental results. At larger densities there appears to be a discrepancy. We discuss improvements to the theory due to nonlocal exchange and the potential importance of subband nonparabolicity.

引用

页码：471 / 474

页数：4

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