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Título : Magnetic proximity effect in Fe/Pt/Nb multilayers
Autor : Vélez, M., Martínez Boubeta, C., Cebollada, Alfonso, Briones Fernández-Pola, Fernando, Vicent, J. L.
Palabras clave : Proximity effect
Fecha de publicación : Feb-2002
Editor: Elsevier
Resumen: uperconductor/normal metal/ferromagnetic structures have been prepared in order to study the proximity effect between the superconductor and the ferromagnet via the normal metal layer. In particular, [25 nm Nb/Pt/10 nm Fe(0 0 1)] trilayers have been grown by DC sputtering with Pt layer thicknesses in the 2–30 nm range. For the samples with the thinnest Pt layers, the superconducting transition temperature is reduced by more than 1 K, in comparison with a control series of [Nb/Pt] bilayers. As the Pt thickness is increased, the transition temperature also increases, until the effect of the Fe layer is completely screened for a 30 nm thick Pt layer. This sets a length scale for this phenomenon comparable to the normal metal coherence length in the Pt, ξN≈32 nm.
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ISSN: 0304-8853
DOI: 10.1016/S0304-8853(01)00851-4
Citación : Journal of Magnetism and Magnetic Materials 240(I-3): 580-582 (2002)
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