Inverse proximity effect in superconductors near ferromagnetic material

M. A. Sillanpää; T. T. Heikkilä; R. K. Lindell; P. J. Hakonen

doi:10.1209/epl/i2001-00561-8

Inverse proximity effect in superconductors near ferromagnetic material

M. A. Sillanpää, T. T. Heikkilä, R. K. Lindell, P. J. Hakonen

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41 Citations (Scopus)

Abstract

We study the electronic density of states in a mesoscopic superconductor near a transparent interface with a ferromagnetic metal. In our tunnel spectroscopy experiment, a substantial density of states is observed at sub-gap energies close to a ferromagnet. We compare our data with detailed calculations based on the Usadel equation, where the effect of the ferromagnet is treated as an effective boundary condition. We achieve an excellent agreement with theory when non-ideal quality of the interface is taken into account.

Original language	English
Pages (from-to)	590-595
Number of pages	6
Journal	Europhysics Letters
Volume	56
Issue number	4
DOIs	https://doi.org/10.1209/epl/i2001-00561-8
Publication status	Published - 11 Nov 2001
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1209/epl/i2001-00561-8

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Inverse proximity effect in superconductors near ferromagnetic material

Abstract

ASJC Scopus subject areas

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