SUPERCONDUCTORS WITH MESOSCOPIC PHASE-SEPARATION

被引：22
作者：
COLEMAN, AJ [1 ]
YUKALOVA, EP [1 ]
YUKALOV, VI [1 ]
机构：
[1] QUEENS UNIV,DEPT MATH & STAT,KINGSTON,ON K7L 3N6,CANADA
来源：
PHYSICA C | 1995年 / 243卷 / 1-2期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1016/0921-4534(94)00002-6
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A model of superconductivity is proposed taking into account repulsive particle interaction, mesoscopic phase separation and softening of the crystalline lattice. These features are typical of many high-temperature superconductors. The main results obtained for the model are: (1) phase separation is possible only if repulsive forces play a significant role; (2) the critical temperature as a function of the superconducting phase fraction can have non-monotonic behaviour; (3) superconductivity is possible in heterophase systems even when it would be forbidden in pure samples. These results are in agreement with experiments.
引用
收藏
页码：76 / 92
页数：17
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