Effect of irradiation with fast electrons on the anisotropy of the magnetoresistance in YBa2Cu3O7-δ single crystals

被引：1
|
作者：
Beletskyi, V., I [1 ]
Khadzhai, G. Ya [1 ]
Vovk, N. R. [1 ]
Litvinov, Yu, V [1 ]
Sklyar, V. V. [1 ]
Goulatis, I. L. [1 ]
机构：
[1] V Karazin Kharkiv Natl Univ, 4 Svobody Sq, UA-61022 Kharkov, Ukraine
来源：
FUNCTIONAL MATERIALS | 2019年 / 26卷 / 03期
关键词：
excess conductivity; YBa2Cu3O7-delta single crystals; electron irradiation; 2D-3D crossover; intrinsic" pinning; TEMPERATURE-DEPENDENCE; ELECTRICAL-RESISTANCE; HYDROSTATIC-PRESSURE; PSEUDO-GAP; CONDUCTIVITY; PARACONDUCTIVITY; PRASEODYMIUM; RESISTIVITY; EVOLUTION; TRANSPORT;
D O I：
10.15407/fm26.03.477
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, we investigated the influence of the misorientation angle between the direction of the constant magnetic field H = 15 kOe and the direction of the basal ab-plane alpha angle(H, ab) on the temperature dependences of the excess conductivity in the region of transitions to the superconducting state of YBa2Cu3O7-delta single crystals irradiated with fast electrons at T< 10 K (energy 0.5 divided by 2.5 MeV, dose 10(18) cm(-2)). It was determined that at temperatures T > T-c, the temperature dependences of the excess paraconductivity are interpreted within the framework of the Aslamazov-Larkin theoretical model of the fluctuation conductivity for layered superconducting systems. The reasons for the appearance of low-temperature "tails" (paracoherent transitions) on resistive transitions corresponding to different phase regimes of the vortex matter are discussed.
引用
收藏
页码：477 / 483
页数：7
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