Josephson current versus potential strength of the interface in ferromagnetic superconductors

doi:10.1088/1674-1056/23/5/057402

中国物理B ›› 2014, Vol. 23 ›› Issue (5): 57402-057402.doi: 10.1088/1674-1056/23/5/057402

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Josephson current versus potential strength of the interface in ferromagnetic superconductors

Hamidreza Emamipour

Department of Physics, Ilam University, Ilam, Iran

收稿日期:2013-09-09 修回日期:2013-12-04 出版日期:2014-05-15 发布日期:2014-05-15
基金资助:
Project supported by the Iran National Science Foundation (INSF).

Josephson current versus potential strength of the interface in ferromagnetic superconductors

Hamidreza Emamipour

Department of Physics, Ilam University, Ilam, Iran

Received:2013-09-09 Revised:2013-12-04 Online:2014-05-15 Published:2014-05-15
Contact: Hamidreza Emamipour E-mail:h_emamipour@yahoo.com
About author:74.45.+c
Supported by:
Project supported by the Iran National Science Foundation (INSF).

摘要/Abstract

摘要： Based on the scattering theory, we calculate the Josephson current in a junction between two ferromagnetic superconductors as a function of the interface potential z. We consider the ferromagnetic superconductor (FS) in three different Cooper pairing states: spin singlet s-wave pairing (SWP) state, spin triplet opposite spin pairing (OSP) state, and spin triplet equal spin pairing (ESP) state. We find that the critical Josephson current as a function of z shows clear differences among the SWP, OSP, and ESP states. The obtained results can be used as a useful tool for determining the pair symmetry of the ferromagnetic superconductors.

关键词: ferromagnetic superconductors, spin singlet s-wave pairing state, spin triplet opposite spin pairing state, spin triplet equal spin pairing state

Abstract: Based on the scattering theory, we calculate the Josephson current in a junction between two ferromagnetic superconductors as a function of the interface potential z. We consider the ferromagnetic superconductor (FS) in three different Cooper pairing states: spin singlet s-wave pairing (SWP) state, spin triplet opposite spin pairing (OSP) state, and spin triplet equal spin pairing (ESP) state. We find that the critical Josephson current as a function of z shows clear differences among the SWP, OSP, and ESP states. The obtained results can be used as a useful tool for determining the pair symmetry of the ferromagnetic superconductors.

Key words: ferromagnetic superconductors, spin singlet s-wave pairing state, spin triplet opposite spin pairing state, spin triplet equal spin pairing state

中图分类号: (Proximity effects; Andreev reflection; SN and SNS junctions)

74.45.+c

Hamidreza Emamipour. Josephson current versus potential strength of the interface in ferromagnetic superconductors[J]. 中国物理B, 2014, 23(5): 57402-057402.

Hamidreza Emamipour. Josephson current versus potential strength of the interface in ferromagnetic superconductors[J]. Chin. Phys. B, 2014, 23(5): 57402-057402.

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Josephson current versus potential strength of the interface in ferromagnetic superconductors

Josephson current versus potential strength of the interface in ferromagnetic superconductors

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