The magnetoresistance (MR) originating from a magnetic structure with gradually rotating magnetic moments was studied, using soft-magnetic (NiFe)/hard-magnetic (CoSm) bilayers. The main feature of the MR curves was explained as anisotropic magnetoresistance (AMR) effect. It was found that a giant-magnetoresistance- (GMR)-type effect coexisted, although the effect was very small in comparison with the AMR effect.
