Controlling exchange coupling strength in NixCu1−x thin films

B. Nagy, Y. N. Khaydukov, L. Kiss, S. Sajti, D. G. Merkel, F. Tanczikó, A. S. Vasenko, R. O. Tsaregorodsev, A. Rühm, T. Keller, L. Bottyán

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Abstract

The thickness (dF) and concentration (x) dependence of the Curie temperature of NixCu1 -x (dF) ferromagnetic alloy layers (x = 0.55, 0.65, dF = [4.5 nm÷12 nm]) 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 transition 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 proximity effects.

Original languageEnglish
Pages (from-to)1957-1961
Number of pages5
JournalJournal of Superconductivity and Novel Magnetism
Volume26
Issue number5
DOIs
Publication statusPublished - 2013

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Keywords

  • Ferromagnet thin film
  • Finite size effect
  • Proximity coupling

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Nagy, B., Khaydukov, Y. N., Kiss, L., Sajti, S., Merkel, D. G., Tanczikó, F., Vasenko, A. S., Tsaregorodsev, R. O., Rühm, A., Keller, T., & Bottyán, L. (2013). Controlling exchange coupling strength in NixCu1−x thin films. Journal of Superconductivity and Novel Magnetism, 26(5), 1957-1961. https://doi.org/10.1007/s10948-012-1897-2