Superconducting proximity effects in ferromagnet/superconductor heterostructures

Chien Te Wu; Oriol T. Valls

doi:10.1007/s10948-012-1645-7

Superconducting proximity effects in ferromagnet/superconductor heterostructures

Chien Te Wu, Oriol T. Valls

Physics and Astronomy (Twin Cities)

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

2 Scopus citations

Abstract

We consider in this paper superconducting proximity effects in clean Ferromagnet/Ferromagnet/Superconductor (F1/F2/S) heterostructures. We make use of a numerical self-consistent solution of the microscopic Bogoliubov-de Gennes equations to investigate the superconducting transition temperatures as a function of the angle a between the magnetizations in the ferromagnetic layers. Unlike in F1/S/F2 trilayers, we find that the superconducting transition temperature is a nonmonotonic function of a.

Original language	English (US)
Pages (from-to)	2173-2175
Number of pages	3
Journal	Journal of Superconductivity and Novel Magnetism
Volume	25
Issue number	7
DOIs	https://doi.org/10.1007/s10948-012-1645-7
State	Published - Oct 2012

Bibliographical note

Funding Information:
Acknowledgements Funded in part by the US NSF under contract NSF DMR-1136621 and by the Minnesota Supercomputing Institute at the University of Minnesota.

Keywords

Heterostructures
Proximity effects
Transition temperatures

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AU - Valls, Oriol T.

N1 - Funding Information: Acknowledgements Funded in part by the US NSF under contract NSF DMR-1136621 and by the Minnesota Supercomputing Institute at the University of Minnesota.

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AB - We consider in this paper superconducting proximity effects in clean Ferromagnet/Ferromagnet/Superconductor (F1/F2/S) heterostructures. We make use of a numerical self-consistent solution of the microscopic Bogoliubov-de Gennes equations to investigate the superconducting transition temperatures as a function of the angle a between the magnetizations in the ferromagnetic layers. Unlike in F1/S/F2 trilayers, we find that the superconducting transition temperature is a nonmonotonic function of a.

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KW - Proximity effects

KW - Transition temperatures

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Superconducting proximity effects in ferromagnet/superconductor heterostructures

Abstract

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Keywords

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