Magnetoresistive and Magnetic Properties of Multilayer Co/Cu Structures with a Variable Number of Bilayers

摘要

Magnetoresistive and magnetic properties of polycrystalline multilayered structures (Co/Cu),: with variable number of bilayers deposited on a buffer Fe layer were investigated. As the number of the bilayers increases to certain values, the growth of the magnetoresistive ratio and the field of the maximum magnetoresistance is revealed. A comparative analysis of the magnetic hysteresis loops and the dependences of the electrical resistance on the magnitude of the external field was performed. The distinguishing features of the field dependence of the magnetoresistance were interpreted using the model of the magnetization reversal of a multilayered structure with weak antiferromagnetic interlayer interaction and coercive force increasing with increasing number of layers.