[16a-S4_201-1~13] 10.2 Fundamental and exploratory device technologies for spin

11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)English Presentation

[16a-S4_201-9] Fabrication of kirigami heat flux sensor based on the anomalous Nernst effect

〇Shusaku Saito^1,2, Takamasa Hirai², Weinan Zhou², Kota Hasegawa³, Rajkumar Modak^1,2, Fuyuki Ando², Yuya Sakuraba², Ken-ichi Uchida^1,2 (1.Univ. Tokyo, 2.NIMS, 3.Resonac Corp.)

Keywords:

anomalous Nernst effect,heat flux sensor,kirigami

The anomalous Nernst effect (ANE) is one of the transverse magneto-thermoelectric effects and the ANE-based heat flux sensor has a thermopile structure formed by depositing magnetic thin film wires and electrodes alternately on a substrate. If the substrate is mechanically flexible, one can construct flexible heat flux sensors. Therefore, the ANE-based heat flux sensor realizes high flexibility and durability with small thermal resistance. However, in such flexible devices, due to the inherent tension of flexible substrates, adhesion performance to non-ruled curvature sometimes deteriorates. In this study, we propose a new architecture of the flexible ANE-based heat flux sensor by introducing “kirigami”, which is a technique enabling solid sheets highly stretchable and flexible.