The 65h JSAP Spring Meeting, 2018

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10 Spintronics and Magnetics » 10.1 Emerging materials in spintronics and magnetics (including fabrication and charactrization methodologies)

[19p-D104-7~21] 10.1 Emerging materials in spintronics and magnetics (including fabrication and charactrization methodologies)

10.1と10.2と10.3のコードシェアセッションあり

Mon. Mar 19, 2018 2:45 PM - 7:00 PM D104 (56-104)

Jun Okabayashi(The Univ. of Tokyo), Takeshi Kato(Nagoya Univ.), Yota Takamura(TITECH)

3:00 PM - 3:15 PM

▼ [19p-D104-8] Large interfacial perpendicular magnetic anisotropy in epitaxial Fe80Al20/MgAl2O4 heterostructures

〇Thomas Scheike1, Hiroaki Sukegawa1, Xiandong Xu1, Kazuhiro Hono1,2, Seiji Mitani1,2 (1.NIMS, 2.Univ. of Tsukuba)

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.