Parameter-free expression for superconducting Tc in cuprates

被引：41

作者：

Alexandrov, AS ^{[1
]}

Kabanov, VV

机构：

[1] Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England

[2] JINR, Bogoliubov Lab Theoret Phys, Dubna, Russia

[3] Josef Stefan Inst, SI-1001 Ljubljana, Slovenia

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.59.13628

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A parameter-free expression for the superconducting critical temperature of layered cuprates is derived which allows us to express T-c in terms of experimentally measured parameters. It. yields T-c values observed in about 30 lanthanum-, yttrium-, and mercury-based samples for different levels of doping. This remarkable agreement with the experiment as well as the unusual critical behavior and the normal-state gap indicate that many cuprates are close to the Bose-Einstein condensation regime. [S0163-1829(99)03921-1].

引用

页码：13628 / 13631

页数：4

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