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Physical Review B
The behavior of minor hysteresis loops in perpendicular anisotropy ͓Co/Pt͔ and ͓Co/Pd͔ multilayers has been investigated. Upon applying a succession of identical magnetic field cycles, we observe a very substantial cumulative growth of the minor loop area. For the ͓Co/Pt͔ multilayers this effect only saturates near complete magnetization reversal while the behavior is slightly more limited for ͓Co/Pd͔ multilayers. We also find this cumulative growth to occur even if the minor loop field cyclesdoi:10.1103/physrevb.82.104423 fatcat:xeajvmjlnbeh3gi2pcfce5og2i