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arXiv · 0806.4104

Experimental Observation of the Inverse Proximity Effect in Superconductor/Ferromagnet Layered Structures

R. I. Salikhov·I. A. Garifullin·N. N. Garif'yanov·L. R. Tagirov·K. Theis-Broehl·K. Westerholt·H. Zabel
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Abstract

We have studied the nuclear magnetic resonance (NMR) of 51V nuclei in the superconductor/ferromagnet thin film heterostructures Ni/V/Ni and Pd{1-x}Fe{x}/V/Pd{1-x}Fe{x} in the normaland superconducting state. Whereas the position and shape of the NMR line in the normal state for the trilayers is identical to that observed in a single V-layer, in the superconducting state the line shape definitely changes, developing a systematic distortion of the high-field wing of the resonance line. We consider this as the first experimental evidence for the penetration of ferromagnetism into the superconducting layer, a phenomenon which has been theoretically predicted recently and dubbed the inverse proximity effect.

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R. I. Salikhov, I. A. Garifullin, N. N. Garif'yanov, L. R. Tagirov, K. Theis-Broehl, K. Westerholt, H. Zabel. 2008-06-25. Experimental Observation of the Inverse Proximity Effect in Superconductor/Ferromagnet Layered Structures. https://doi.org/10.1103/physrevlett.102.087003

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