Estimating the coherence length in the electron-doped superconductor Nd2-xCexCuO4+δ

被引：2

作者：

Charikova, T. B. ^{[1
]}

Harus, G. I. ^{[1
]}

Shelushinina, N. G. ^{[1
]}

Sochinskaya, O. E. ^{[1
]}

Ivanov, A. A. ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Met Phys, Ekaterinburg, Russia

[2] Moscow Engn Phys Inst, Moscow 115409, Russia

来源：

LOW TEMPERATURE PHYSICS | 2011年 / 37卷 / 04期

关键词：

BOSE-CONDENSATION;

D O I：

10.1063/1.3592218

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The low-temperature upper critical field is measured for single crystal Nd2-xCexCuO4+delta with different values of x and nonstoichiometric disorder (delta). The coherence length for pair correlation xi and the product k(F)xi, where k(F) is the Fermi wave vector, are estimated. It is shown that the parameter k(F)xi congruent to 100 for these single crystals, so that, phenomenologically, the NdCeCuO-system is in the domain of Cooper-pair-based (BCS) superconductivity. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3592218]

引用

页码：293 / 295

页数：3

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