Spin-Hall effects: from the two-channel model to Dyakonov-Perel equations

B. Madon; H.-J. Drouhin; D. Lacour; J.-E. Wegrowe

doi:10.1117/12.2063647

28 August 2014 Spin-Hall effects: from the two-channel model to Dyakonov-Perel equations

B. Madon, H.-J. Drouhin, D. Lacour, J.-E. Wegrowe

Proceedings Volume 9167, Spintronics VII; 91671O (2014) https://doi.org/10.1117/12.2063647
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

Abstract

The anisotropic properties of thermal transport in insulating or conducting ferromagnets are derived on the basis of the Onsager reciprocity relations applied to a magnetic system. It is shown that the angular dependence of the temperature gradient takes the same form as that of the anisotropic magnetoresistance, including anomalous and planar Hall contributions [1]. The experimental study [2] shows that the voltage measured between the extremities of the non-magnetic electrode in thermal contact to the Py or YIG ferromagnetic layers follows the predicted angular dependence. Furthermore, the sign and the amplitude of the magneto-voltaic signal measured is in agreement with the thermocouples calculated from the corresponding Seebeck coefficients, for the three different electrodes used in the study (Pt, Cu, Bi).

Citation Download Citation

B. Madon, H.-J. Drouhin, D. Lacour, and J.-E. Wegrowe "Spin-Hall effects: from the two-channel model to Dyakonov-Perel equations", Proc. SPIE 9167, Spintronics VII, 91671O (28 August 2014); https://doi.org/10.1117/12.2063647

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