[10a-M101-9~12] 10.2 Fundamental and exploratory device technologies for spin

▲ [10a-M101-12] Anomalous Ettingshausen Effect in Ferrimagnetic Co-Gd

〇Takeshi Seki^1,2,3, Asuka Miura², Ken-ichi Uchida^2,3,4, Takahide Kubota^1,3, Koki Takanashi^1,3 (1.IMR, Tohoku Univ., 2.NIMS, 3.CSRN, Tohoku Univ., 4.Univ. Tokyo)

Keywords:Spin Caloritronics, Ferrimagnet, Anomalous Ettingshausen effect

We found that the sign of anomalous Ettingshausen effect (AEE) is determined by the magnetic moments of Co sublattice, as well as those of the magneto-optical Kerr effect and the anomalous Hall effect, and the magnitude of AEE does not decrease even when it composition is close to the magnetization compensation. Our experimental results suggest that the magnetically-compensated ferrimagnets become candidates for high-performance thermomagnetic materials with tiny magnetization.