Observation of the Magneto-Thomson Effect
Ken‐ichi Uchida, Masayuki Murata, Asuka Miura, Ryo Iguchi
Abstract
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 polycrystalline Bi_{88}Sb_{12} alloy 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."
Topics & Concepts
MagnetoThermoelectric effectCondensed matter physicsSeebeck coefficientThomson scatteringMagnetic fieldPhysicsMaterials scienceThermoelectric coolingEngineering physicsPlasmaNuclear physicsMagnetThermodynamicsQuantum mechanicsAdvanced Thermoelectric Materials and DevicesPhysics of Superconductivity and MagnetismMagnetic properties of thin films