Resistivity tensor correlations in the mixed state of electron-doped superconductor Nd2-xCexCuO4+δ

被引：8
|
作者：
Charikova, T. B. [1 ,2 ]
Shelushinina, N. G. [1 ]
Harus, G. I. [1 ]
Petukhov, D. S. [1 ]
Petukhova, O. E. [1 ]
Ivanov, A. A. [3 ]
机构：
[1] RAS, Ural Branch, MN Mikheev Inst Met Phys, Ekaterinburg, Russia
[2] Ural Fed Univ, Ekaterinburg, Russia
[3] Natl Res Nucl Univ MEPhI, Moscow, Russia
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2016年 / 525卷
关键词：
Electron-doped cuprate superconductors; Mixed state; Resistivity tensor correlation 74.72.Ek; 74.78.-w; 74.25.F-; SCALING BEHAVIOR; HALL RESISTIVITY; THIN-FILMS; FLUX-FLOW; NONSTOICHIOMETRIC DISORDER; II SUPERCONDUCTORS; VORTEX MOTION; DEPENDENCE;
D O I：
10.1016/j.physc.2016.05.003
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetic-field dependencies of the longitudinal and Hall resistance of the electron-doped compounds Nd2-xCexCuO4+delta in underdoped region with x = 0.14 and with varying degrees of disorder (delta) were investigated. It was established experimentally that the correlation between the longitudinal electrical resistivity and the Hall resistivity can be analyzed on the basis of scaling relationships:.rho(xy)(B) similar to [rho(xx)(B)](beta). For the totality of the investigated single-crystal films of Nd2-xCexCuO4+delta/SrTiO3 the values of beta from 0.8 to 1.55 is found. The observed feature in the electron-doped two-dimensional systems can be associated both with a displaying of anisotropic s- wave or d- wave pairing symmetry and with a pinning due to an essential degree of disorder in the samples under study. (C) 2016 Published by Elsevier B.V.
引用
收藏
页码：78 / 83
页数：6
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