B. Nagy, Yu. N. Khaydukov, L. F. Kiss, Sz. Sajti, D. G. Merkel, F. Tanczikó, A. S. Vasenko, R. O. Tsaregorodsev, A. Rühm, T. Keller, L. Bottyán
Thickness (dF) and concentration (x) dependence of the Curie temperature of NixCu100-x(dF) ferromagnetic alloy layers (x =0.55,0.65, dF =[3nm{\div}12nm]) being in contact with a vanadium layer was studied. The Curie temperature of the ferromagnetic layers depends on the thickness when it is comparable with the interface layer between the F and the vanadium layers, which is attributed to the proximity coupling of the interface region with the rest of the F layer. The present study provides valuable information for fabrication of samples with controlled exchange coupling strength for studies of superconductor/ferromagnet (S/F) proximity effects.
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http://arxiv.org/abs/1205.4149
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