CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Josephson current versus potential strength of the interface in ferromagnetic superconductors |
Hamidreza Emamipour |
Department of Physics, Ilam University, Ilam, Iran |
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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.
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Received: 09 September 2013
Revised: 04 December 2013
Accepted manuscript online:
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PACS:
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74.45.+c
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(Proximity effects; Andreev reflection; SN and SNS junctions)
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Fund: Project supported by the Iran National Science Foundation (INSF). |
Corresponding Authors:
Hamidreza Emamipour
E-mail: h_emamipour@yahoo.com
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About author: 74.45.+c |
Cite this article:
Hamidreza Emamipour Josephson current versus potential strength of the interface in ferromagnetic superconductors 2014 Chin. Phys. B 23 057402
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