NONLOCAL DISPERSION OF EDGE MAGNETOPLASMA EXCITATIONS IN A 2-DIMENSIONAL ELECTRON-SYSTEM

被引：59

作者：

GRODNENSKY, I ^{[1
]}

HEITMANN, D ^{[1
]}

VONKLITZING, K ^{[1
]}

机构：

[1] ACAD SCI USSR,INST RADIO ENGN & ELECTR,MOSCOW 103907,USSR

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.67.1019

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Edge magnetoplasma excitations in a two-dimensional electron system have been studied in radiofrequency experiments which exhibit a strong nonlocal behavior of the plasmon dispersion. The nonlocality is shown to be caused by the diagonal conductivity sigma-xx, which, via a length l is-proportional-to sigma-xx, governs the spatial distribution of the plasma charge oscillations in the direction perpendicular to the plasmon wave vector, i.e., to the edge of the two-dimensional layer.

引用

页码：1019 / 1022

页数：4

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