NONEQUILIBRIUM POPULATION OF EDGE STATES AND A ROLE OF CONTACTS IN THE QUANTUM HALL REGIME

被引：16

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：

SURFACE SCIENCE | 1990年 / 229卷 / 1-3期

关键词：

D O I：

10.1016/0039-6028(90)90876-A

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Heterostructure (GaAs/AlGaAs) Hall-bar devices with a short cross gate are studied in a quantum Hall regime. Anomalous longitudinal resistances and deviations of the Hall resistance from quantized values are interpreted as a consequence of non-equilibrium distribution in edge states. The results ar analyzed in terms of properties of contacts. © 1990.

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页码：224 / 228

页数：5

相关论文

共 19 条

[1] ASYMMETRY IN THE MAGNETOCONDUCTANCE OF METAL WIRES AND LOOPS [J].

BENOIT, AD ;

WASHBURN, S ;

UMBACH, CP ;

LAIBOWITZ, RB ;

WEBB, RA .

PHYSICAL REVIEW LETTERS, 1986, 57 (14) :1765-1768

[2] ABSENCE OF BACKSCATTERING IN THE QUANTUM HALL-EFFECT IN MULTIPROBE CONDUCTORS [J].

BUTTIKER, M .

PHYSICAL REVIEW B, 1988, 38 (14) :9375-9389

[3] 4-TERMINAL PHASE-COHERENT CONDUCTANCE [J].

BUTTIKER, M .

PHYSICAL REVIEW LETTERS, 1986, 57 (14) :1761-1764

[4] QUANTIZED MULTICHANNEL MAGNETOTRANSPORT THROUGH A BARRIER IN 2 DIMENSIONS [J].

HAUG, RJ ;

MACDONALD, AH ;

STREDA, P ;

VONKLITZING, K .

PHYSICAL REVIEW LETTERS, 1988, 61 (24) :2797-2800

[5] QUANTITATIVE-ANALYSIS OF THE ROLE OF CONTACTS IN THE MEASUREMENTS OF INTEGRAL QUANTUM HALL-EFFECTS [J].

HIRAI, H ;

KOMIYAMA, S ;

SASA, S ;

FUJII, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1989, 58 (11) :4086-4092

[6]

HIRAI H, 1988, 19TH P INT C PHYS SE, P55

[7] LANDAUER-TYPE FORMULATION OF QUANTUM-HALL TRANSPORT - CRITICAL CURRENTS AND NARROW CHANNELS [J].

JAIN, JK ;

KIVELSON, SA .

PHYSICAL REVIEW B, 1988, 37 (08) :4276-4279

[8] QUANTUM HALL-EFFECT IN QUASI ONE-DIMENSIONAL SYSTEMS - RESISTANCE FLUCTUATIONS AND BREAKDOWN [J].

JAIN, JK ;

KIVELSON, SA .

PHYSICAL REVIEW LETTERS, 1988, 60 (15) :1542-1545

[9]

KOMIYAMA K, 1989, PHYS REV B, V40, P12566

[10] THEORY OF CONTACTS IN A TWO-DIMENSIONAL ELECTRON-GAS AT HIGH MAGNETIC-FIELDS [J].

KOMIYAMA, S ;

HIRAI, H .

PHYSICAL REVIEW B, 1989, 40 (11) :7767-7775