[16p-D61-1~13] 10.2 Fundamental and exploratory device technologies for spin

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[16p-D61-12] Anomalous Nernst effect in Gd-Co alloys for heat flux sensing

〇Kenji Tanabe¹, Miho Odagiri¹, Hiroto Imaeda¹, Ahmet Yagmur^1,2, Yuichiro Kurokawa³, Satoshi Sumi¹, Hiroyuki Awano¹ (1.Toyota Tech. Inst., 2.Univ. Leeds, 3.Kyushu Univ.)

Keywords:

Anomalous Nernst effect,Thermal conductivity

Anomalous Nernst heat flux sensors are expected to be a necessary elemental technology for a waste heat management society. The sensitivity of the sensor is related to the transverse Seebeck coefficient and thermal conductivity. Therefore, we conducted research focusing on amorphous Gd-Co alloys with the aim of increasing their sensitivity. We demonstrated that the Gd-Co alloys exhibit high sensitivity in both positive and negative polarities. The reason for the high sensitivity is based on the low thermal conductivity of the amorphous nature.