Moke and AMR investigations on exchange bias field strength and direction in ferromagnet/antiferromagnet systems

摘要

Exchange bias is widely used for fixing a magnetic soft layer within a GMR or TMR spin valve system. However there is a big lack of knowledge concerning the microscopic description and the determination of local properties like the distribution of exchange bias field strength H{sub}(eb) and direction responsible for the reversal mechanism, and asymmetry of the reversal.