[21a-P02-1~50] 10 Spintronics and Magnetics(Poster)

[21a-P02-31] Sensitivity improvement of a heat flux sensor using anomalous Nernst effect

〇(B)Hiroto Imaeda¹, Sota Kambe¹, Miho Odagiri¹, Satosi Sumi¹, Hiroyuki Awano¹, Kenji Tanabe¹ (1.Toyota Tech. Inst.)

Keywords:a heat flux sensor, anomalous Nernst effect

The heat flow sensor can confirm heat as a vector and see the heat change in detail, but it has a complicated structure because it currently uses the Seebeck effect. Looking ahead to its application to flexible devices, we focused on the anomalous Nernst effect. A sample in which a Co thin wire was applied as a ferromagnetic thin wire on a glass substrate and a polyurethane film was coated on it was assumed. A constant heat flow was applied to it in the direction perpendicular to the plane, and the temperature gradient inside the thin wire was simulated. As a result, it was found that the temperature gradient becomes extremely larger when the thin wire width is narrower.