COHERENCE LENGTH AND VORTEX FILAMENT IN THE BOSON-FERMION MODEL OF SUPERCONDUCTIVITY

被引：66

作者：

FRIEDBERG, R ^{[1
]}

LEE, TD ^{[1
]}

REN, HC ^{[1
]}

机构：

[1] ROCKEFELLER UNIV, NEW YORK, NY 10021 USA

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.42.4122

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The boson-fermion model of high-Tc superconductivity is based on the dominance of the s-channel reaction 2e2e, where is a local field, representing phenomenologically the pair state. We show that in this model the coherence length can be calculated and is very small, consistent with observation. This, in turn, justifies the local-field approximation. The relevance of Bose-Einstein condensation is discussed; in this theory, the critical temperature can be much higher than that in the BCS theory. We also examine the vortex filament and the critical magnetic fields Hc1 and Hc2. © 1990 The American Physical Society.

引用

页码：4122 / 4134

页数：13

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