EXCHANGE AND CORRELATION IN THE NONHOMOGENEOUS ELECTRON-GAS IN SEMICONDUCTOR HETEROJUNCTIONS

被引：71

作者：

GAMMON, D ^{[1
]}

SHANABROOK, BV ^{[1
]}

RYAN, JC ^{[1
]}

KATZER, DS ^{[1
]}

YANG, MJ ^{[1
]}

机构：

[1] SFA INC, LANDOVER, MD 20785 USA

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.68.1884

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a detailed comparison between experiment and theory of the magnitude of the exchange-correlation Coulomb interaction in the collective intersubband spin-density excitation of the electron gas confined to GaAs/AlGaAs quantum wells. A widely used self-consistent-field theory in which exchange and correlation is incorporated through the local-density approximation is found to underestimate slightly the magnitude of the interaction, while a nonlocal theory involving a variational solution of the Bethe-Salpeter equation for the density-density correlation function compares well with experiment.

引用

页码：1884 / 1887

页数：4

共 14 条

[1] ELECTRONIC-PROPERTIES OF TWO-DIMENSIONAL SYSTEMS
ANDO, T
FOWLER, AB
STERN, F
[J]. REVIEWS OF MODERN PHYSICS, 1982, 54 (02) : 437 - 672
[2] OPTICAL CONTROL OF TWO-DIMENSIONAL ELECTRON-DENSITY IN A SINGLE ASYMMETRIC QUANTUM-WELL
CHAVES, AS
PENNA, AFS
WORLOCK, JM
WEIMANN, G
SCHLAPP, W
[J]. SURFACE SCIENCE, 1986, 170 (1-2) : 618 - 623
[3] GAMMON D, 1990, PHYS REV B, V41, P12314
[4] GAMMON D, 1990, PHYSICS SEMICONDUCTO, P1469
[5] EXCHANGE AND CORRELATION IN ATOMS, MOLECULES, AND SOLIDS BY SPIN-DENSITY FUNCTIONAL FORMALISM
GUNNARSSON, O
LUNDQVIST, BI
[J]. PHYSICAL REVIEW B, 1976, 13 (10) : 4274 - 4298
[6] ELECTRON CORRELATIONS IN INVERSION LAYERS
JONSON, M
[J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1976, 9 (16): : 3055 - 3071
[7] DENSITY DEPENDENCE OF INTERSUBBAND TRANSITIONS IN A MODULATION-DOPED QUANTUM WELL
JUSSERAND, B
BRUM, JA
GARDIN, D
LIU, HW
WEIMANN, G
SCHLAPP, W
[J]. PHYSICAL REVIEW B, 1989, 40 (06): : 4220 - 4223
[8] SELF-CONSISTENT EQUATIONS INCLUDING EXCHANGE AND CORRELATION EFFECTS
KOHN, W
SHAM, LJ
[J]. PHYSICAL REVIEW, 1965, 140 (4A): : 1133 - &
[9] LARGE EXCHANGE INTERACTIONS IN THE ELECTRON-GAS OF GAAS QUANTUM WELLS
PINCZUK, A
SCHMITTRINK, S
DANAN, G
VALLADARES, JP
PFEIFFER, LN
WEST, KW
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (15) : 1633 - 1636
[10] INFRARED AND POLARIZATION ANOMALIES IN THE OPTICAL-SPECTRA OF MODULATION-DOPED SEMICONDUCTOR QUANTUM-WELL STRUCTURES
RUCKENSTEIN, AE
SCHMITTRINK, S
MILLER, RC
[J]. PHYSICAL REVIEW LETTERS, 1986, 56 (05) : 504 - 507

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