• Influence of pairing symmetry and multiple energy gaps on the behaviour of critical current through the Josephson junction

• # Fulltext

https://www.ias.ac.in/article/fulltext/pram/096/0110

• # Keywords

Iron-based superconductors; pairing symmetry; critical current; IcRn product.

• # Abstract

The extended Ambegaokar–Baratoff model was applied to calculate the critical current ($I_c$) of a superconductor/insulator/superconductor (S/I/S) Josephson junction with multiple tunnelling channels. We analysed the sensitivity of the critical current, multiplied by normal-state resistance (i.e.,$I_c$$R_n product), to the symmetries of the order parameter in the Bardeen-Cooper-Schrieffer (BCS)-type gap formula. In addition, we showed that the temperature dependence of the product I_c$$R_n$ ($T$),which corresponds to multigap symmetry, exhibitsa shoulder-like feature and has a pronounced kink at $T$ ${\simeq}$10K for the SmFeAsO$_{0.9}$F$_{0.1}$ superconductor.

• # Author Affiliations

1. Institute of Nuclear Physics, Uzbekistan Academy of Sciences, 100214, Tashkent, Uzbekistan
2. Akfa University, Milliy Bog Street, Tashkent 111221, Uzbekistan
3. Faculty of Physics, National University of Uzbekistan, 100174, Tashkent, Uzbekistan
4. Yeoju Technical Institute in Tashkent, 100121, Tashkent, Uzbekistan
5. Nukus State Pedagogical Institute named after A’jiniyaz, 230105, Nukus, Uzbekistan

• # Pramana – Journal of Physics

Volume 97, 2023
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019