MAGNETOPLASMON EXCITATIONS IN A PERIODICALLY MODULATED 2-DIMENSIONAL ELECTRON-GAS

被引：17

作者：

WULF, U ^{[1
]}

ZEEB, E ^{[1
]}

GIES, P ^{[1
]}

GERHARDTS, RR ^{[1
]}

HANKE, W ^{[1
]}

机构：

[1] UNIV WURZBURG,INST PHYS,W-8700 WURZBURG,GERMANY

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.41.3113

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dielectric response of a laterally modulated two-dimensional electron gas in a perpendicular magnetic field is studied fully quantum mechanically in the random-phase approximation. The ground-state wave functions are obtained self-consistently in the Hartree approximation. Parameters appropriate for a laterally microstructured GaAs-AlxGa1-xAs interface (modulation period 5×10-5 cm, electron density 2×1011 cm-2, magnetic field 10 T) are chosen. The dielectric function, with local-field effects included, is calculated, and results for the magnetoplasmon dispersion for wave vectors parallel and perpendicular to the one-dimensional modulation potential are presented. © 1990 The American Physical Society.

引用

页码：3113 / 3116

页数：4

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