Presentation Information
[15p-PB1-25]Large coercivity in Tb-Co-Pt films heat flux sensing
〇(B)Saki Kato1, Hiroto Imaeda1, Tomohiro Koizumi1, Hiroyuki Awano1, Kenji Tanabe1 (1.Toyota Tech. Inst.)
Keywords:
anomalous nernst effect,rare earth transition metals
Heat flux sensors utilizing the Anomalous Nernst effect offer several advantages, such as flexibility and mass producibility, due to their simple structure. The sensitivity of amorphous Gd-Co-Pt thin films was improved by Pt addition, However, achieving high coercivity simultaneously was challenging. We focused on Tb, which is expected to exhibit strong perpendicular magnetic anisotropy, and fabricated Tb-Co-Pt thin films using sputtering. As a result, we successfully improved coercivity in a specific composition range and confirmed an anomalous Nernst coefficient comparable to that of the Gd-based system.