%0 Journal Article
%T Magnetoresistive Properties of Spin-Valve Structures Based on Co and Cu or Au
%A M.H. Demydenko
%A S.I. Protsenko
%A D.M. Kostyuk
%A I.V. Cheshko
%J Journal of Nano- and Electronic Physics
%D 2011
%I Sumy State University
%X The construction of module for automation measurement of magnetoresistance (MR) and coercitivity force (§£§ã) in spin-valve structures based on Co and Cu or Au film systems was proposed. The peculiarities of dependences of MR and Bc from angle ¦Á between substrate plane and direction of external magnetic field induction were studied. The abrupt changes of MR and §£§ã in the range ¦Á = 70¡ã   90¡ã were determined. The dependence character of MR from ¦Á describes as a level of solution of atoms of bottom ferromagnetic layer Co(3 nm) or Co(20 nm) in layer Cu(6 nm) as long as atoms Co(3 nm) have a practically full solution but Co(20 nm) ¨C only limited solution. In this case magnetization of magnet layers of Co(20) and solid solution (s. s.) [Cu, Co(3 nm)] and layers of [Co(20 nm-x)] + s.s.[Cu, Co(x)] realize in different ways. This fact is cause of increase or decrease of MR.
%K Spin-Valve
%K MR
%K Induction of magnetic field
%K Coercitivity.
%U http://jnep.sumdu.edu.ua/download/numbers/2011/4/articles/jnep_2011_V3_N4_106-113.pdf