Correlation between the potential contribution and magnetic transport properties for magnetic multilayers

We discuss the exchange potential and impurity scattering potential effect on the magnetic transport properties of magnetic multilayers. In the case o f Hartree-Fork approximation, the model Hamiltonian with respect to the mag netization and potential contribution is presented. The expression of giant magnetoresistance is obtained by considering both interface and bulk magne tization contribution. The results show that the giant magnetoresistance in magnetic multilayer is different for different layer thickness. Meanwhile, we also clarify the interface and bulk contribution of the giant magnetore sistance in magnetic multilayer for different exchange potential and impuri ty scattering potential.