Eur. Phys. J. B (2017) 90: 106
https://doi.org/10.1140/epjb/e2017-80053-4

Regular Article

The c-axis fluctuation conductivity in layered superconductors in a strong electric field under a magnetic field

¹ Institute of Research and Development, Duy Tan University, K7/25 Quang Trung, Danang, Vietnam
² Department of Physics, Hanoi National University of Education, 136 Xuanthuy, Caugiay, Hanoi, Vietnam

^a e-mail: tinhbd@hnue.edu.vn

Received: 22 January 2017
Received in final form: 26 March 2017
Published online: 5 June 2017

Abstract

The effect of a high electric field on the c-axis fluctuation conductivity in layered superconductors near the superconducting transition is investigated by the time-dependent Ginzburg-Landau equation. The c-axis fluctuation conductivity is calculated in self-consistent Gaussian approximation for an arbitrarily strong electric field and a magnetic field perpendicular to the layers. Our results include all Landau levels and have refined analytical form. The results in linear response are in good agreement with the experimental data in a wide region around T_c in high T_c superconductor. We also show that high electric fields can be effectively used to suppress the c-axis fluctuation conductivity in high-temperature superconductors.