Proximity effect in the finite and incommensurate ferromagnet/superconductor systems

The original theory of a proximity effect is proposed for the bi- and tri-layered system ferromagnetic metal/superconductor ( F/ S) in dirty limit. The F 1/ S/ F 2 trilayer is examined more closely. The distinctions in materials, in thicknesses of F layers ( d f 1 and d f 2), in parameters interface...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2009-04, Vol.321 (7), p.920-923
Main Authors: Proshin, Yurii N., Luchkin, Ruslan G., Khusainov, Mansur G.
Format: Article
Language:English
Subjects:
Critical temperature
Ferromagnetism
Incommensurability
Proximity effect
Reentrant superconductivity
Superconducting spin-valve
Superconductivity
T c interference
Trilayer
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Summary:The original theory of a proximity effect is proposed for the bi- and tri-layered system ferromagnetic metal/superconductor ( F/ S) in dirty limit. The F 1/ S/ F 2 trilayer is examined more closely. The distinctions in materials, in thicknesses of F layers ( d f 1 and d f 2), in parameters interfaces, and in local environments of layers are considered among the causes of incommensurability of trilayer. The peculiar T c ( d f 1, d f 2) interference pattern is predicted for the F 1/ S/ F 2 systems. The reentrant superconductivity and possibility of the better observability of the spin-valve regime are discussed.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2008.11.055