Bose-Einstein to BCS crossover picture for high-T-c cuprates

被引：153

作者：

Uemura, YJ

机构：

[1] Dept. of Physics, Columbia University, New York

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1997年 / 282卷

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0921-4534(97)00194-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Combining (1) the universal correlations between T-c and n(s)/m* (superconducting carrier density / effective mass) and (2) the pseudo-gap behavior in the underdoped region, we obtain a picture to describe superconductivity in cuprate systems in evolution from Bose-Einstein to BCS condensation. Overdoped and Zn-substituted cuprate systems show signatures of reduced superfluid density in a microscopic phase separation. Scaling of T-c to the superfluid volume density n(s) in all these cases indicate importance of Bose condensation.

引用

收藏

页码：194 / 197

页数：4

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