Presentation Information
[21a-C501-10]Spin-current-induced non-equilibrium change in thermal conductivity
and interfacial thermal resistance at room temperature
〇Takamasa Hirai1, Toshiaki Morita1,2, Subrata Biswas1,3, Jun Uzuhashi1, Takashi Yagi4, Yuichiro Yamashita4, Varun Kumar Kushwaha1, Rajkumar Modak1, Yuya Sakuraba1, Tadakatsu Ohkubo1, Rulei Guo5, Bin Yu5, Junichiro Shiomi5, Daichi Chiba2,6,7,8, Ken-ichi Uchida1 (1.NIMS, 2.SANKEN, Osaka Univ., 3.IITG, 4.AIST, 5.the Univ. of Tokyo, 6.CSRN, Osaka Univ., 7.OTRI, Osaka Univ., 8.SRIS, Tohoku Univ.)
Keywords:
spin caloritronics,thermal conduction,spin current
The development of spin caloritronics, a fusion research field of spintronics and thermal engineering, provides novel concepts and functionalities in thermal management technologies for electronic and spintronic devices. However, most of the present spin caloritronics studies are specialized in the thermal energy conversion, e.g., thermoelectric and thermo-spin effects. To make effective use of spintronic thermal management, various controlling techniques and principles of heat transfer utilizing the spin degree of freedom need to be developed. Here, we focus on the active control of thermal conductivity in spintronic materials.
In this talk, we mainly show the result of measuring the nano-scale thermal conductivity and interfacial thermal resistance in a garnet crystal substrate/ferromagnetic CoFe junction system at room temperature, measured by a time-domain thermoreflectance method.
In this talk, we mainly show the result of measuring the nano-scale thermal conductivity and interfacial thermal resistance in a garnet crystal substrate/ferromagnetic CoFe junction system at room temperature, measured by a time-domain thermoreflectance method.