Diamagnetism of real-space pairs above Tc in hole doped cuprates

被引：8

作者：

Alexandrov, A. S. ^{[1
]}

机构：

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

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2010年 / 22卷 / 42期

关键词：

UPPER CRITICAL-FIELD; QUANTUM OSCILLATIONS; TEMPERATURE; MAGNETIZATION; FLUCTUATIONS; TRANSITION; SUPERCONDUCTIVITY; DEPENDENCE;

D O I：

10.1088/0953-8984/22/42/426004

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The nonlinear normal state diamagnetism reported by Li et al (2010 Phys. Rev. B 81 054510) is shown to be incompatible with a claimed Cooper pairing and vortex liquid above the resistive critical temperature. However, it is perfectly compatible with the normal state Landau diamagnetism of real-space composed bosons, which provides a description of the nonlinear magnetization curves of the less anisotropic cuprates La-Sr-Cu-O (LSCO) and Y-Ba-Cu-O (YBCO) as well as for strongly anisotropic bismuth-based cuprates over the whole range of available magnetic fields.

引用

页数：4

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