Magnetic structure and magnetoresistance of metallic multilayers

Abstract

Giant magnetoresistance (GMR) phenomena are briefly introduced and the relationship between the magnetic structure and the magnetoresistance of multilayers is argued. The merits of non-coupled-type multilayers, for technical applications and also for fundamental studies, are described. The results achieved on samples with doped interface layers indicate that the spin-dependent scattering occurs primarily at the interface sites. MR measurements in a new geometry, with the current at an angle to the plane, were carried out by depositing non-coupled-type multilayers on substrates with V-shaped microgrooves, and enhanced MR ratios were observed.