Theory of exchange coupling in disordered magnetic multilayers
A. Yu. Zyuzin
A. F. Ioffe Physical-Technical Institute RAS, 194021 St.Petersburg, Russia
PACS: 75.70.Cn
Abstract
We consider mechamism of exchange coupling based on interaction
between electrons in nonmagnetic layer. Depending on ratio of inverse time of
diffusion of electrons between ferromagnetic layers and ferromagnetic
splitting of conducting electrons this mechanism describes transition from
ferromagnetic to noncollinear ordering of magnetizations of ferromagnetic
layers.