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.
@article{arxiv.1205.4149,
title = {Controlling exchange coupling strength in NixCu100-x thin films},
author = {B. Nagy and Yu. N. Khaydukov and L. F. Kiss and Sz. Sajti and D. G. Merkel and F. Tanczikó and A. S. Vasenko and R. O. Tsaregorodsev and A. Rühm and T. Keller and L. Bottyán},
journal= {arXiv preprint arXiv:1205.4149},
year = {2012}
}
Comments
10 pages, 5 figures, submitted to Jurnal of Superconductivity and Novel Magnetism