Temperature-dependent proximity magnetism in Pt

We study experimentally the magnetic coupling between ferromagnets separated by a thin Pt layer. The coupling remains ferromagnetic regardless of the Pt thickness and exhibits a significant dependence on temperature. We show that these results are consistent with the effects of temperature-dependent...

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Bibliographic Details
Published in:Applied physics letters 2013-04, Vol.102 (16)
Main Authors: Lim, W. L., Ebrahim-Zadeh, N., Owens, J. C., Hentschel, H. G. E., Urazhdin, S.
Format: Article
Language:English
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Summary:We study experimentally the magnetic coupling between ferromagnets separated by a thin Pt layer. The coupling remains ferromagnetic regardless of the Pt thickness and exhibits a significant dependence on temperature. We show that these results are consistent with the effects of temperature-dependent magnetism induced in Pt at the interfaces with ferromagnets. Analysis shows that the characteristic magnetization decay length in Pt increases from approximately 0.2 nm at room temperature to 0.8 nm at 25 K.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4802954