Josephson current in d-wave superconductor junctions with ferromagnetic insulator

Автор(и)

  • Yan-Hua Liao School of Mathematics and Physics, Huangshi Institute of Technology, Huangshi 435100, People's Republic of China
  • Meng Yang School of Mathematics and Physics, Huangshi Institute of Technology, Huangshi 435100, People's Republic of China
  • Chang Ma School of Mathematics and Physics, Huangshi Institute of Technology, Huangshi 435100, People's Republic of China
  • Yu-Bin Cao School of Mathematics and Physics, Huangshi Institute of Technology, Huangshi 435100, People's Republic of China

DOI:

https://doi.org/10.1063/1.4705736

Ключові слова:

high-Tc superconductors, ferromagnetic insulator, Josephson current.

Анотація

We investigate the temperature dependence of the critical current and current-phase relation by taking into account the ferromagnetic scattering effect at interface in a d-wave superconductor (S)/ferromagnetic insulator layer (FI)/d-wave superconductor (S) junction. It is shown that both the barrier scattering and the roughness scattering at the interface always suppress the Andreev reflection. The Josephson critical currents depend to a great extent on the effective exchange field of the interface and the crystal orientation of the d-wave superconductor. The exchange field can lead to the change of the junction from 0 to π states and the alteration of the oscillation periods. It can also enhance the Josephson critical current in the junction under certain conditions.

Завантаження

Дані завантаження ще не доступні.

Downloads

Опубліковано

2012-03-16

Як цитувати

(1)
Liao, Y.-H.; Yang, M.; Ma, C.; Cao, Y.-B. Josephson Current in d-Wave Superconductor Junctions With Ferromagnetic Insulator. Fiz. Nizk. Temp. 2012, 38, 474-479.

Номер

Розділ

Надпровідність, зокрема високотемпературна