Low Temperature Physics: 45, 785 (2019); https://doi.org/10.1063/1.5111307
Fizika Nizkikh Temperatur: Volume 45, Number 7 (July 2019), p. 916-920    ( to contents , go back )

Evolution of the transverse electrical resistance of YBa2Cu3O7–δ single crystals under irradiation with high-energy electrons

G.Ya. Khadzhai, Yu.V. Litvinov, and R.V. Vovk

Харьковский национальный университет им. В.Н. Каразина, пл. Свободы, 4, г. Харьков, 61022, Украина
E-mail: george.ya.khadjai@univer.kharkov.ua
pos Анотація:

Received January 8, 2019 г., revised February 20, 2019 г., published online May 28, 2019

Abstract

The effect of irradiation with high-energy electrons on the transverse resistivity of YBa2Cu3O7–δ single crystals of a high degree of perfection that are optimally doped with oxygen is studied. This irradiation creates macroscopic regions oriented along the layers, differing in oxygen deficiency, which leads to variable-length hopping transverse conductivity. Increasing the dose of radiation leads to a decrease in the region of localization of charge carriers.

Key words: YBa2Cu3O7–δ, transverse resistance, electron irradiation, superconducting transition, composition fluctuations, hopping conductivity, defects.

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