[10p-S302-1~18] 10.2 Fundamental and exploratory device technologies for spin

▲ [10p-S302-1] [Young Scientist Presentation Award Speech] Mechanical cooling-heating switching of anisotropic magneto-Peltier effect

〇Takamasa Hirai¹, Sepehri-Amin Hossein¹, Kento Hasegawa^2,3, Tomohiro Koyama^3,4, Ryo Iguchi¹, Tadakatsu Ohkubo¹, Daichi Chiba^3,4, Ken-ichi Uchida^1,5,6 (1.NIMS, 2.The Univ. of Tokyo, 3.SANKEN, Osaka Univ., 4.CSRN, Osaka Univ., 5.CSRN, Tohoku Univ., 6.IMR, Tohoku Univ.)

Keywords:spin caloritronics, spintronics

The development of spin caloritronics opened up a new area of the thermal energy conversion, where the spin degree of freedom provides unique functionalities for thermoelectric/thermospin conversion which cannot be realized if only the conventional Seebeck and Peltier effects are used. Towards future sustainable green information technologies, it is crucial to establish active heat control principles and improve the thermoelectric/thermospin conversion efficiency. In this presentation, we mainly talk about the demonstration of the active switching of local cooling and heating generated by the anisotropic magneto-Peltier effect (AMPE), one of the thermoelectric effects in magnetic materials, by applying a uniaxial tensile strain to a Ni film. We will also show our recent progress of the study on the enhancement of the anisotropic magneto-Seebeck effect, the Onsager reciprocal of AMPE, by doping of Ni with Pt having the strong spin-orbit interaction.