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

页码：477 / 483

页数：7

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