Magnetization reversal and magnetoresistance of [CoFe/Au/Co/Au]N multilayers with noncollinear magnetic structure

Magnetic hysteresis of [CoFe/Au/Co/Au]N multilayers displaying giant magnetoresistance was investigated. It is shown that an effective coupling between the neighboring magnetic layers can be modified by the changes of the structure of the multilayers. It is shown, too, that this coupling is influenced by temperature. Some of the observed dependencies are explained on the basis of micromagnetic simulations.