https://doi.org/10.1051/epjconf/201817303015
Shift of Shapiro Step in High Critical Temperature Superconductors
1 BLTP, JINR, Dubna, Moscow Region, 141980, Russia
2 State University of “Dubna”, Dubna, Moscow region, 141980 Russia
3 Department of Physics, Cairo University, Cairo, Egypt
4 Department of Electrical and Electronic Systems Engineering, Utsunomiya University, Japan
* e-mail: kulikov@theor.jinr.ru
Published online: 14 February 2018
The influence of the charge imbalance effect on a system of intrinsic Josephson junctions of high temperature superconductors under external electromagnetic radiation is investigated. We find that the charge imbalance is responsible for the slope of the Shapiro step in the IV-characteristic. The nonperiodic boundary conditions shift the Shapiro step from the canonical position which is determined by the frequency of the external radiation. We also find how the system parameters influence the shift of the Shapiro step.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
