Some device implications of voltage controlled magnetic anisotropy in Co/Gd2O3 thin films through REDOX chemistry
2018
Abstract The effect of intermediate interfacial oxidation on the in-plane magnetization of multilayer stack Pt/Co/Gd 2 O 3 , on a p-type silicon substrate, has been investigated by magneto-optical Kerr effect (MOKE) measurements, the anomalous Hall effect, and magnetoresistance measurements. While voltage controlled perpendicular magnetic anisotropy of a metal/oxide heterostructure is known, this heterostructure displays an inverse relationship between voltage and coercivity. The anomalous Hall effect demonstrates a significant change in hysteresis, with the applied bias sign. There is a higher perpendicular magnetic anisotropy with positive bias exposure.
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