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.

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页码：1060 / 1063

页数：4

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