Observation of the Magneto-Thomson Effect
Observation of the Magneto-Thomson Effect
复制标题
磁汤姆逊效应的观察
DOI：
10.1103/physrevlett.125.106601
复制
发表时间：
2020
影响因子：
8.6
通讯作者：
Iguchi Ryo
中科院分区：
文献类型：
--
作者：
Uchida Ken-ichi;Murata Masayuki;Miura Asuka;Iguchi Ryo
本文报道了基于磁汤姆逊效应的高阶热电转换现象。利用热电成像技术，我们直接观测了磁场作用下多晶合金中汤姆逊效应引起的温度变化，发现磁增强汤姆逊系数可以与塞贝克系数相当甚至更大。我们的实验揭示了高阶磁热电转换的重要贡献，打开了“非线性自旋热电子学”的大门。
We report the observation of the higher-order thermoelectric conversion based on a magneto-Thomson effect. By means of thermoelectric imaging techniques, we directly observed the temperature change induced by the Thomson effect in a polycrystallinealloy under a magnetic field and found that the magnetically enhanced Thomson coefficient can be comparable to or even larger than the Seebeck coefficient. Our experiments reveal the significant contribution of the higher-order magnetothermoelectric conversion, opening the door to “nonlinear spin caloritronics.”