QUENCHING OF THE HALL-EFFECT IN A NOVEL GEOMETRY

被引：4
作者：
CHANG, AM
CHANG, TY
机构：
[1] Room 4C-428, AT and T Bell Laboratories, Holmdel
来源：
SURFACE SCIENCE | 1990年 / 229卷 / 1-3期
关键词：
D O I：
10.1016/0039-6028(90)90872-6
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：
We study the Hall effect at low magnetic fields in ballistic GaAs-AlxGa1 - xAs heterostructure Hall junctions that contain four, three, two, or one narrow constrictions in the junction region. These geometries are investigated to determine the necessary condition for observation of the quenching of the Hall effect. We find that only the four constriction geometry shows a genuine quenching. By applying a backgate bias, quenching is produced within a finite electron density range. Our results are interpreted within the framework of the Büttiker-Landauer formulas in terms of junction scattering of the electrons. © 1990.
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页码：209 / 211
页数：3
相关论文
共 13 条
[1]  
BARANGER HU, UNPUB PHYS REV LETT
[2]   4-TERMINAL PHASE-COHERENT CONDUCTANCE [J].
BUTTIKER, M .
PHYSICAL REVIEW LETTERS, 1986, 57 (14) :1761-1764
[3]   QUENCHING OF THE HALL RESISTANCE IN A NOVEL GEOMETRY [J].
CHANG, AM ;
CHANG, TY ;
BARANGER, HU .
PHYSICAL REVIEW LETTERS, 1989, 63 (09) :996-999
[4]   VANISHING HALL VOLTAGE IN A QUASI-ONE-DIMENSIONAL GAAS-ALXGA1-XAS HETEROJUNCTION [J].
FORD, CJB ;
THORNTON, TJ ;
NEWBURY, R ;
PEPPER, M ;
AHMED, H ;
PEACOCK, DC ;
RITCHIE, DA ;
FROST, JEF ;
JONES, GAC .
PHYSICAL REVIEW B, 1988, 38 (12) :8518-8521
[5]   INFLUENCE OF GEOMETRY ON THE HALL-EFFECT IN BALLISTIC WIRES [J].
FORD, CJB ;
WASHBURN, S ;
BUTTIKER, M ;
KNOEDLER, CM ;
HONG, JM .
PHYSICAL REVIEW LETTERS, 1989, 62 (23) :2724-2727
[6]   MECHANISM OF THE QUENCHING OF THE HALL-EFFECT [J].
KIRCZENOW, G .
PHYSICAL REVIEW LETTERS, 1989, 62 (25) :2993-2996
[7]   QUANTUM HALL RESISTANCE IN THE QUASI-ONE-DIMENSIONAL ELECTRON-GAS [J].
PEETERS, FM .
PHYSICAL REVIEW LETTERS, 1988, 61 (05) :589-592
[8]   QUANTUM HALL-EFFECT AT A 4-TERMINAL JUNCTION [J].
RAVENHALL, DG ;
WYLD, HW ;
SCHULT, RL .
PHYSICAL REVIEW LETTERS, 1989, 62 (15) :1780-1783
[9]   QUENCHING OF THE HALL-EFFECT IN A ONE-DIMENSIONAL WIRE [J].
ROUKES, ML ;
SCHERER, A ;
ALLEN, SJ ;
CRAIGHEAD, HG ;
RUTHEN, RM ;
BEEBE, ED ;
HARBISON, JP .
PHYSICAL REVIEW LETTERS, 1987, 59 (26) :3011-3014
[10]  
ROUKES MLJ, UNPUB PHYS REV LETT
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