Anomalous Ettingshausen effect in ferrimagnetic Co–Gd. (28th January 2019)

• Record Type: Journal Article
• Authors: Seki, Takeshi; Miura, Asuka; Uchida, Ken-ichi; Kubota, Takahide; Takanashi, Koki
• Is Part Of: Applied physics express. Volume 12:Number 2(2019)
• Publication Date: 2019-01-28
• Subjects: Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.7567/1882-0786/aafb5a
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: We report the observation of anomalous Ettingshausen effect (AEE) in ferrimagnetic Co100− x Gd x amorphous alloy thin films, which was visualized using lock-in thermography. We found that the sign of 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 x is close to the magnetization compensation composition. Our experimental results suggest that the magnetically-compensated ferrimagnets become candidates for high-performance thermomagnetic materials with tiny magnetization.