INFLUENCE OF DISORDERED CONTACTS ON THE 4-TERMINAL MEASUREMENTS OF INTEGRAL QUANTUM HALL-EFFECTS

被引：45

作者：

KOMIYAMA, S ^{[1
]}

HIRAI, H ^{[1
]}

SASA, S ^{[1
]}

FUJII, T ^{[1
]}

机构：

[1] FUJITSU LABS LTD,SEMICOND MAT LAB,ATSUGI 24301,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 73卷 / 02期

关键词：

D O I：

10.1016/0038-1098(90)91024-B

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Four-terminal resistance measurements are made on GaAs-AlGaAs heterostructure Hall-bar devices with and without a cross gate. When electrons are injected from disordered contacts, anomaly is observed in both longitudinal and Hall resistances in the integer quantum Hall regime. The results are interpreted by an analysis of a contact originally developed by Buttiker. © 1990.

引用

页码：91 / 95

页数：5

共 11 条

[1] ABSENCE OF BACKSCATTERING IN THE QUANTUM HALL-EFFECT IN MULTIPROBE CONDUCTORS
BUTTIKER, M
[J]. PHYSICAL REVIEW B, 1988, 38 (14): : 9375 - 9389
[2] QUANTIZED MULTICHANNEL MAGNETOTRANSPORT THROUGH A BARRIER IN 2 DIMENSIONS
HAUG, RJ
MACDONALD, AH
STREDA, P
VONKLITZING, K
[J]. PHYSICAL REVIEW LETTERS, 1988, 61 (24) : 2797 - 2800
[3] BREAKDOWN OF THE QUANTUM HALL-EFFECT DUE TO ELECTRON HEATING
KOMIYAMA, S
TAKAMASU, T
HIYAMIZU, S
SASA, S
[J]. SOLID STATE COMMUNICATIONS, 1985, 54 (06) : 479 - 484
[4] KOMIYAMA S, IN PRESS PHYS REV B
[5] KOMIYAMA S, 1989, PHYS REV B, V40
[6] INVERSE PARTICIPATION NUMBER AND FRACTAL DIMENSIONALITY OF ELECTRONIC STATES IN A 2 DIMENSIONAL SYSTEM IN STRONG PERPENDICULAR MAGNETIC-FIELD
ONO, Y
OHTSUKI, T
KRAMER, B
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1989, 58 (05) : 1705 - 1716
[7] ONO Y, COMMUNICATION
[8] ANALYSIS OF QUANTIZED HALL RESISTANCE AT FINITE TEMPERATURES
TAUSENDFREUND, B
VONKLITZING, K
[J]. SURFACE SCIENCE, 1984, 142 (1-3) : 220 - 224
[9] QUANTIZED HALL-EFFECT IN THE PRESENCE OF BACKSCATTERING
WASHBURN, S
FOWLER, AB
SCHMID, H
KERN, D
[J]. PHYSICAL REVIEW LETTERS, 1988, 61 (24) : 2801 - 2804
[10] WEES BJ, 1989, PHYS REV LETT, V62, P1181

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