Microwave resonances in low-filling insulating phase of two-dimensional electron system

被引：35

作者：

Engel, LW ^{[1
]}

Li, CC ^{[1
]}

Shahar, D ^{[1
]}

Tsui, DC ^{[1
]}

Shayegan, M ^{[1
]}

机构：

[1] PRINCETON UNIV,DEPT ELECT ENGN,PRINCETON,NJ 08544

来源：

SOLID STATE COMMUNICATIONS | 1997年 / 104卷 / 03期

基金：

美国国家科学基金会;

关键词：

heterojunctions; fractional quantum Hall effect; quantum localization;

D O I：

10.1016/S0038-1098(97)00302-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present data on finite frequency (0.2 less than or equal to f less than or equal to 8.6 GHz) conductivity, Re(sigma(xx)), of the insulator terminating in a fractional quantum Hall effect series in the high magnetic field (B) limit. As B is increased within the insulator, at temperatures of 50 and 200 mK Re(sigma(xx)) vs f evolves from a decreasing curve into a peak. The height and f of the peak increase with B. Integrals of Re(sigma(xx)) vs f become B-independent at large enough B. The results are discussed within the framework of the Fukuyama-Lee model of the dynamics of a pinned Wigner crystal. (C) 1997 Published by Elsevier Science Ltd.

引用

收藏

页码：167 / 171

页数：5

相关论文

共 36 条

[1] OBSERVATION OF A MAGNETICALLY INDUCED WIGNER SOLID [J].

ANDREI, EY ;

DEVILLE, G ;

GLATTLI, DC ;

WILLIAMS, FIB ;

PARIS, E ;

ETIENNE, B .

PHYSICAL REVIEW LETTERS, 1988, 60 (26) :2765-2768

[2] NOVEL MAGNETOOPTICAL BEHAVIOR IN THE WIGNER-SOLID REGIME [J].

BUHMANN, H ;

JOSS, W ;

VONKLITZING, K ;

KUKUSHKIN, IV ;

PLAUT, AS ;

MARTINEZ, G ;

PLOOG, K ;

TIMOFEEV, VB .

PHYSICAL REVIEW LETTERS, 1991, 66 (07) :926-929

[3]

Efros A. L., 1985, ELECT ELECT INTERACT

[4] MICROWAVE FREQUENCY-DEPENDENCE OF INTEGER QUANTUM HALL-EFFECT - EVIDENCE FOR FINITE-FREQUENCY SCALING [J].

ENGEL, LW ;

SHAHAR, D ;

KURDAK, C ;

TSUI, DC .

PHYSICAL REVIEW LETTERS, 1993, 71 (16) :2638-2641

[5] DYNAMICS OF CHARGE-DENSITY WAVE .1. IMPURITY PINNING IN A SINGLE CHAIN [J].

FUKUYAMA, H ;

LEE, PA .

PHYSICAL REVIEW B, 1978, 17 (02) :535-541

[6] PINNING AND CONDUCTIVITY OF 2-DIMENSIONAL CHARGE-DENSITY WAVES IN MAGNETIC-FIELDS [J].

FUKUYAMA, H ;

LEE, PA .

PHYSICAL REVIEW B, 1978, 18 (11) :6245-6252

[7] EVIDENCE FOR 2-DIMENSIONAL QUANTUM WIGNER CRYSTAL [J].

GOLDMAN, VJ ;

SANTOS, M ;

SHAYEGAN, M ;

CUNNINGHAM, JE .

PHYSICAL REVIEW LETTERS, 1990, 65 (17) :2189-2192

[8] MAGNETOOPTICAL PROBE OF 2-DIMENSIONAL ELECTRON LIQUID AND SOLID-PHASES [J].

GOLDYS, EM ;

BROWN, SA ;

DUNFORD, RB ;

DAVIES, AG ;

NEWBURY, R ;

CLARK, RG ;

SIMMONDS, PE ;

HARRIS, JJ ;

FOXON, CT .

PHYSICAL REVIEW B, 1992, 46 (12) :7957-7960

[9] MAGNETOTRANSPORT STUDIES OF THE INSULATING PHASE AROUND UPSILON=1/5 LANDAU-LEVEL FILLING [J].

JIANG, HW ;

STORMER, HL ;

TSUI, DC ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW B, 1991, 44 (15) :8107-8114

[10] QUANTUM LIQUID VERSUS ELECTRON SOLID AROUND V=1/5 LANDAU-LEVEL FILLING [J].

JIANG, HW ;

WILLETT, RL ;

STORMER, HL ;

TSUI, DC ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1990, 65 (05) :633-636

← 1 2 3 4 →