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▼ [19p-D104-8] Large interfacial perpendicular magnetic anisotropy in epitaxial Fe80Al20/MgAl2O4 heterostructures
Keywords:PMA, Fe-Al, MgAl2O4
In this study, we investigated the interfacial perpendicular magnetic anisotropy (PMA) using a Fe-Al alloy. We found enhanced effective PMA energy Keff up to 1.1 MJ/m3 at 450°C in Fe80Al20 in contact with an MgAl2O4 barrier. Ki reaches around 2.8 mJ/m3 at 450°C and is strongly temperature dependent. The large PMA can be attributed to the creation of effective Fe-O hybridization at the Fe-Al/MgAl2O4 interface through the atomic rearrangement.