Mesoscopic fluctuations of the Josephson current of an S-I-S junction with weak structural disorder

被引：1

作者：

Kirpichenkov, VY ^{[1
]}

机构：

[1] S Russia State Tech Univ, Novocherkassk 346400, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2000年 / 91卷 / 05期

关键词：

Spectroscopy; Magnetic Field; State Physics; Field Theory; Elementary Particle;

D O I：

10.1134/1.1334997

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is shown that in the range of tunneling resonance energies of an S-I-S (superconductor-insulator-superconductor) junction with weak (low impurity concentrations) structural disorder in the I-layer, the average critical current and the magnitude of its mesoscopic fluctuations are determined by tunneling along quantum resonance-percolation trajectories. For a "small" junction situated in a parallel magnetic field at temperature T = 0 conditions for smallness of the mesoscopic fluctuations are obtained and an estimate is made of the range of parameters in which the resonance mechanism for supercurrent propagation predominates. (C) 2000 MAIK "Nauka/Interperiodica".

引用

页码：1066 / 1069

页数：4

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