WEAK LOCALIZATION IN A DISTRIBUTION OF MAGNETIC-FLUX TUBES

被引：167
作者：
BENDING, SJ
VONKLITZING, K
PLOOG, K
机构：
[1] Max-Planck-Institut F̈r Festkörperforschung, D-7000 Stuttgart 80
来源：
PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 08期
关键词：
D O I：
10.1103/PhysRevLett.65.1060
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Thin gates of type-II superconducting materials have been prepared on top of the two-dimensional electron gas in a GaAs/AlGaAs heterostructure. In an applied magnetic field the flux distribution at the electron gas takes the form of flux tubes which are much narrower than an electron phase coherence length. We observe a qualitatively new weak-localization magnetoconductance for small fields proportional to, in contrast to the B2 homogeneous result and in semiquantitative agreement with the theory of Rammer and Shelankov. © 1990 The American Physical Society.
引用
收藏
页码：1060 / 1063
页数：4
相关论文
共 11 条
  • [1] SCALING THEORY OF LOCALIZATION - ABSENCE OF QUANTUM DIFFUSION IN 2 DIMENSIONS
    ABRAHAMS, E
    ANDERSON, PW
    LICCIARDELLO, DC
    RAMAKRISHNAN, TV
    [J]. PHYSICAL REVIEW LETTERS, 1979, 42 (10) : 673 - 676
  • [2] MAGNETORESISTANCE AND HALL-EFFECT IN A DISORDERED 2-DIMENSIONAL ELECTRON-GAS
    ALTSHULER, BL
    KHMELNITZKII, D
    LARKIN, AI
    LEE, PA
    [J]. PHYSICAL REVIEW B, 1980, 22 (11): : 5142 - 5153
  • [3] BISHOP DJ, 1980, PHYS REV LETT, V44, P1153, DOI 10.1103/PhysRevLett.44.1153
  • [4] SIMPLE MODEL FOR VORTEX CORE IN A TYPE-II SUPERCONDUCTOR
    CLEM, JR
    [J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 1975, 18 (5-6) : 427 - 435
  • [5] DIRECT OBSERVATIONS OF MAGNETIC-STRUCTURE IN THIN-FILMS OF PB, SN, AND IN
    DOLAN, GJ
    [J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 1974, 15 (1-2) : 111 - 132
  • [6] HIKAMI S, 1980, PROG THEOR PHYS, V63, P707, DOI 10.1143/PTP.63.707
  • [7] KRUITHOF GH, 1989, 19TH P INT C PHYS SE
  • [8] TRAPPING CHARACTERISTICS AND A DONOR-COMPLEX (DX) MODEL FOR THE PERSISTENT PHOTOCONDUCTIVITY TRAPPING CENTER IN TE-DOPED ALXGA1-XAS
    LANG, DV
    LOGAN, RA
    JAROS, M
    [J]. PHYSICAL REVIEW B, 1979, 19 (02) : 1015 - 1030
  • [9] WEAK LOCALIZATION OF TWO-DIMENSIONAL ELECTRONS IN GAAS-ALXGA1-XAS HETEROSTRUCTURES
    LIN, BJF
    PAALANEN, MA
    GOSSARD, AC
    TSUI, DC
    [J]. PHYSICAL REVIEW B, 1984, 29 (02): : 927 - 934
  • [10] WEAK LOCALIZATION IN INHOMOGENEOUS MAGNETIC-FIELDS
    RAMMER, J
    SHELANKOV, AL
    [J]. PHYSICAL REVIEW B, 1987, 36 (06): : 3135 - 3146
12