Coexistence of ferromagnetism and superconductivity in normal mental/superconductor/ferromagnet structures

We extend the Blonder, Tinkham and Klapwijk theory to the study of the inverse proximity effects in the normal mental/superconductor/ferromagnet structures. In the superconducting film, there are the gapless superconductivity and the spin-dependent density of states both within and without the energ...

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Bibliographic Details
Published in:Chinese physics B 2010-08, Vol.19 (8), p.554-558, Article 087203
Main Author: 郁华玲 彭菊 金本喜
Format: Article
Language:English
Subjects:
Barriers
Energy gap
Ferromagnetism
Inverse
Proximity effect (electricity)
Superconducting films
Superconductivity
Superconductors
反铁磁体
磁体结构
超导体
超导薄膜
邻近效应
铁磁性
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Summary:We extend the Blonder, Tinkham and Klapwijk theory to the study of the inverse proximity effects in the normal mental/superconductor/ferromagnet structures. In the superconducting film, there are the gapless superconductivity and the spin-dependent density of states both within and without the energy gap. It indicates an appearance of the inverse-proximity-effect-induced ferromagnetism and a coexistence of ferromagnetism and superconductivity near the interface. The influence of exchange energy in the ferromagnet and barrier strength at the superconductor/ferromagnet interface on the inverse proximity effects is discussed.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/19/8/087203