Functional Materials, 23, No.2 (2016), p.170-173.
Effect of longitudinal magnetic field on the excess conductivity of monodomain YBa2Cu3O7-δ single crystals
1Physics Department, V.Karazin Kharkiv National University, 4 Svobody Sq., 61022 Kharkiv, Ukraine
2Ukrainian State University of Railway Transport, 7 Feyerbaha Sq., 61050 Kharkiv, Ukraine
3Faculty of Engineering and Computing, Coventry University, 3 Gulson Str., Coventry CV1 2JH, United Kingdom
In the present study influence of longitudinal magnetic field on temperature dependence of the excess conductivity in the temperature interval of transition to the superconducting state in untwinned YBa2Cu3O7-δ single crystals with optimal oxygen content are investigated. Causes of low-temperature tails (paracoherent transitions) in resistive transitions in the superconducting state are analyzed in the framework of implementation of various regimes of the phase state of vortex matter.
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