CONDUCTANCE FLUCTUATIONS IN SMALL NORMAL AND SUPERCONDUCTOR COMPOSITE WIRE SYSTEMS

被引：32

作者：

TAKANE, Y

EBISAWA, H

机构：

[1] Department of Engineering Science, Tohoku University

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1991年 / 60卷 / 09期

关键词：

MESOSCOPIC SYSTEM; CONDUCTANCE FLUCTUATION; NS SYSTEM A-B OSCILLATION; PHASE COHERENCE;

D O I：

10.1143/JPSJ.60.3130

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Conductance fluctuations and oscillations with applied magnetic field in small normal and superconductor composite wire systems are studied theoretically. It is shown that the phase memory of a normal electron vanishes in a superconductor when its length is much longer than xi. Superconductors, however, greatly affect transport properties through the Andreev reflection. For example, the conductance of a NSN ring oscillates as the function of applied magnetic field with period hc/2e, not hc/e.

引用

页码：3130 / 3138

页数：9

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[3]

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