Title :
Influence of Interlayer Interfaces on Exchange Coupling Efficiency in Multilayer Magnetoresistive Films With Fe50Mn50 Layers
Author :
Vas´kovskiy, Vladimir O. ; Lepalovskij, Vladimir N. ; Gorkovenko, Alexander N. ; Savin, Peter A. ; Kulesh, Nikita A. ; Shchegoleva, Nina N.
Author_Institution :
Ural Fed. Univ., Ekaterinburg, Russia
Abstract :
The role of preparation conditions and parameters of the layered structure on the magnetoresistive properties of Fe20Ni80/Fe50Mn50 and Fe20Ni80/Fe50Mn50/Fe20Ni80 films with exchange coupling have been investigated. It was found that relative position of the Fe20Ni80 and Fe50Mn50 layers as well as presence of the high frequency electric bias of the substrate during film deposition affect the efficiency of the exchange interaction. Dependences of the exchange bias field and anisotropic magnetoresistance on the heat treatment conditions for the films with different layered structures were analyzed.
Keywords :
Permalloy; exchange interactions (electron); heat treatment; magnetic anisotropy; magnetic multilayers; magnetic thin films; magnetoresistance; manganese alloys; sputter deposition; Fe20Ni80-Fe50Mn50; Fe20Ni80-Fe50Mn50-Fe20Ni80; anisotropic magnetoresistance; exchange bias field dependence; exchange coupling efficiency; exchange interaction; film deposition; heat treatment; high frequency electric bias; interlayer interfaces; layered structure; magnetoresistive properties; magnetron sputtering; multilayer magnetoresistive films; permalloy; Magnetic hysteresis; Magnetic multilayers; Magnetometers; Magnetoresistance; Perpendicular magnetic anisotropy; Substrates; Anisotropic magnetoresistance; exchange bias; heat treatment; interface; microstructure; multilayer films; thickness;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2327131
