[20p-E216-1~7] 【CS.8】 Code-sharing Session of 10.1, 10.2, 10.3 & 10.4

▲ [20p-E216-3] Dependence of spin orbit torque effective fields on temperature in (Fe₄N, Mn₄N)/NM bilayer systems

〇Shinji Isogami¹ (1.NIMS)

Keywords:nitride magnetic film, current induced spin orbit torque

We have studied current induced spin orbit torque (SOT) effective fields for the bilayer systems with nitrides such as Fe₄N : ferromagnet/{W, Pt} and Mn₄N : ferrimagnet/Pt. Using the harmonic-Hall voltage measurements, the anomalous Nernst effects (ANE) of the Fe₄N and the SOT effective fields of the Fe₄N and Mn₄N were estimated as functions of measurement temperature (T) and applied fields. The sign reversal of 2nd-harmonic voltage was obtained, which was attributed to the superposition of ANE. SOT characteristics for the nitrides will be summarized.