DYNAMICS OF VORTICES IN UNDERDAMPED JOSEPHSON-JUNCTION ARRAYS

被引：70

作者：

VANDERZANT, HSJ ^{[1
]}

FRITSCHY, FC ^{[1
]}

ORLANDO, TP ^{[1
]}

MOOIJ, JE ^{[1
]}

机构：

[1] MIT, DEPT ELECT ENGN & COMP SCI, CAMBRIDGE, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.66.2531

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Vortex motion has been studied for the first time in high-quality, highly underdamped, two-dimensional Josephson-junction arrays, with normal-state junction resistances ranging from 43-OMEGA to 48 k-OMEGA. Strong similarity is found with the dynamics of the phase in single junctions, e.g., vortices with mass moving in the spatially periodic washboard potential of the 2D array. High-resistance arrays show resistance below 35 mK due to either thermally activated depinning or quantum fluctuations.

引用

页码：2531 / 2534

页数：4

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