Effect of the presence of a Pt intermediate layer (IL) between a 50-nm-thick CoCrPt recording layer (RL) and a 100-nm-thick NiFe soft magnetic under layer (SUL) has been studied using ferromagnetic Hall effect under the tilted magnetic field. CoCrPt RL with/without Pt IL between the RL and SUL revealed different inclination in the anomalous Hall voltage loop indicating the effect from the Ni-Fe SUL. Magnetic properties of the SUL, simultaneously detected from the Planar Hall voltage suggested the interaction effect between the CoCrPt RL and Ni-Fe SUL.
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Das et al. (2004) studied this question.
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