Correlation between Phase-Structural State and Magnetic Characteristics of Spin-Valve Systems Based on Fe, Co and Au

Authors M.H. Demydenko1, A.P. Kuzmenko2 , S.I. Protsenko1 , O.V. Fedchenko1

1 Sumy State University, 2, R.-Korsakova Str., 40007 Sumy, Ukraine

2 Southwest State University, 94, 50 Let Oktyabrya Str., 305040 Kursk, Russia

Issue Volume 5, Year 2013, Number 4
Dates Received 15 November 2013; revised manuscript received 02 December 2013; published online 10 December 2013
Citation M.H. Demydenko, A.P. Kuzmenko, S.I. Protsenko, O.V. Fedchenko, J. Nano- Electron. Phys. 5 No 4, 04017 (2013)
PACS Number(s) 75.60.Ej, 68.65.Ac
Keywords Spin-valve structures, Demagnetization induction, Magnetoresistance (6) , Kerr effect (2) , Anisotropic magnetoresistance, Sensitivity (11) .
Annotation This paper presents the results of investigation of phase-structural state, magneto-optical and magneto-resistive properties of multilayer spin-valve films structures on the basis of Fe, Co and Au. It was found that annealing of the samples up to Ta = 600-720 K leads to the formation of limited solid solution (s.s.) (Au, Co(Fe)) based on fcc-Au that considerably influences on the magnetic properties of the systems. The conditions and formation procedure of the most heat-stable systems with maximum values of magneto resistance, sensitivity to magnetic field changes and induction of demagnetization were found.

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