Spin current in superconductors

Sadamichi Maekawa; Saburo Takahashi; Shin Ichi Hikino; Michiyasu Mori

doi:10.1143/PTPS.176.341

Spin current in superconductors

Sadamichi Maekawa, Saburo Takahashi, Shin Ichi Hikino, Michiyasu Mori

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Superconductivity and ferromagnetism are competing ordered states of matter. It is shown that in superconductor/ferromagnet/superconductor junctions, the coupled dynamics brings about the novel phenomena: The ferromagnetic resonance induces the DC component of the Josephson current in the junctions. In a superconductor/half-metallic-ferromagnet/superconductor junction, the singlet pairs are converted to the triplet ones and the Josephson coupling occurs accompanied by the back flow of spin current. The recent experiment is discussed in the light of the theory.

Original language	English
Pages (from-to)	341-354
Number of pages	14
Journal	Progress of Theoretical Physics Supplement
Issue number	176
DOIs	https://doi.org/10.1143/PTPS.176.341
Publication status	Published - 2008
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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AU - Hikino, Shin Ichi

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AB - Superconductivity and ferromagnetism are competing ordered states of matter. It is shown that in superconductor/ferromagnet/superconductor junctions, the coupled dynamics brings about the novel phenomena: The ferromagnetic resonance induces the DC component of the Josephson current in the junctions. In a superconductor/half-metallic-ferromagnet/superconductor junction, the singlet pairs are converted to the triplet ones and the Josephson coupling occurs accompanied by the back flow of spin current. The recent experiment is discussed in the light of the theory.

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Spin current in superconductors

Abstract

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