Microwave resonances in low-filling insulating phases of two-dimensional electron and hole systems

被引：10

作者：

Engel, LW ^{[1
]}

Li, CC

Shahar, D

Tsui, DC

Shayegan, M

机构：

[1] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

来源：

PHYSICA E | 1997年 / 1卷 / 1-4期

关键词：

Wigner crystal; pinning mode; microwave resonance;

D O I：

10.1016/S1386-9477(97)00025-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The conductivity of the high magnetic field insulating phases of two-dimensional electron and hole systems (2DES and 2DHS) of sufficiently low disorder exhibits a resonance at microwave frequency. We present and compare results on this resonance in a moderate disorder 2DES and in a high quality 2DHS. The 2DES exhibits the resonance even though the high-B insulator is not reentrant around the 1/5 fractional quantum Hall effect. The resonance in the 2DHS is much sharper than that in the 2DES, and appears to be inconsistent with the standard model of a two-dimensional harmonic oscillator in a magnetic field. (C) 1997 Elsevier Science B.V. All rights reserved.

引用

页码：111 / 115

页数：5

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