MINIMUM CRITICAL LENGTH FOR SUPERCONDUCTIVITY IN ONE-DIMENSIONAL WIRES

被引：4

作者：

CHI, CC ^{[1
]}

SANTHANAM, P ^{[1
]}

WIND, SJ ^{[1
]}

BRADY, MJ ^{[1
]}

BUCCHIGNANO, JJ ^{[1
]}

机构：

[1] IBM CORP,THOMAS J WATSON RES CTR,DIV RES,YORKTOWN HTS,NY 10598

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.50.3487

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have experimentally studied the superconducting behavior of one-dimensional aluminum wires of various lengths. Each wire had much wider two-dimensional contact pads on both sides. At a temperature T below T(c), when the wide pads are driven normal by a perpendicular magnetic field, only samples longer than a critical length, L(c) congruent-to pixi(T), show evidence for superconductivity. This is a direct confirmation of the prediction by Liniger for a normal-metal-superconductor-normal-metal structure with clean interfaces.

引用

页码：3487 / 3490

页数：4

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