Phase fluctuations of the superconducting order parameter in high-Tc systems

被引：9

作者：

Alvarez, JJV ^{[1
]}

Balseiro, CA ^{[1
]}

机构：

[1] INST BALSEIRO, RA-8400 SAN CARLOS BARILOCHE, RIO NEGRO, ARGENTINA

来源：

SOLID STATE COMMUNICATIONS | 1996年 / 98卷 / 04期

关键词：

superconductors; electron-electron interactions; phase transitions;

D O I：

10.1016/0038-1098(96)00047-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Starting with a microscopic Hamiltonian describing a superconducting system, we use the functional integral formalism to map the problem to the XY-model. The effective model describes vortex-line fluctuations with a coupling constant J that is given in terms of the microscopic parameters. The results obtained with this procedure, which is valid at all temperatures, are compared with those obtained in previous works.

引用

页码：313 / 316

页数：4

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