Effects of grain-boundaries in superconducting materials

被引：0

作者：

Hogan-O'Neill, JJ ^{[1
]}

Martin, AM ^{[1
]}

Annett, F ^{[1
]}

机构：

[1] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

来源：

TIGHT-BINDING APPROACH TO COMPUTATIONAL MATERIALS SCIENCE | 1998年 / 491卷

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We examine the effects of grain-boundaries on the order-parameter and critical-currents in superconductors. We use a geometrical model of the lattice structure of grain-boundaries. We solve the Bogoliubov-de Gennes equation using the Recursion Method to obtain the self-consistent BCS gap function Delta and the local density of states N(E) near the boundary. Imposing a phase difference across the boundary we calculate the supercurrent and hence obtain the critical-current, I-c, of the junction.

引用

页码：407 / 414

页数：8

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