Acoustic edge modes of the degenerate two-dimensional electron gas studied by time-resolved magnetotransport measurements

被引：60

作者：

Ernst, G

Haug, RJ

Kuhl, J

vonKlitzing, K

Eberl, K

机构：

[1] Max-Planck-Institut fÜr Festkörperforschung, Stuttgart, 70569

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.77.4245

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Edge magnetoplasmons propagating along the smooth boundary of a two-dimensional electron gas are studied by time-resolved magnetotransport experiments. The incident pulse splits up into several pulses due to modal dispersion. The observed delay times are well described by the predictions of Aleiner and Glazman for the fundamental and acoustic modes [Phys. Rev. Lett. 72, 2935 (1994)], if the quantized Hall conductance is taken into account.

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页码：4245 / 4248

页数：4

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