[8p-Z08-1~8] 10.4 半導体スピントロニクス・超伝導・強相関

▲ [8p-Z08-4] Influence of external temperature on interface spin polarization of ferromagnet-semiconductor heterostructures

〇Michihiro Yamada¹、Yu Shiratsuchi^2,1、Hiroto Kambe³、Kohei Kudo³、Shinya Yamada^1,3、Kentarou Sawano⁴、Ryoichi Nakatani^2,1、Kohei Hamaya^1,3 (1.CSRN, Osaka Univ.、2.GSE, Osaka Univ.、3.GSES, Osaka Univ.、4.ARL, Tokyo City Univ.)

キーワード：semiconructor spintronics, Germanium, spin injection

In this study, we investigate the temperature dependence of the interface spin polarization of ferromagnet (FM)/semiconductor (SC) heterostructures for SC-based lateral spin-valve (LSV) devices with various FM/SC interface conditions. For the high-quality FM-SC interfaces, the temperature evolution of interface spin polarization can be interpreted in terms of a model of the thermally excited spin waves in FM electrodes, similar to the case of magnetic tunnel junctions.