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Proceedings Paper

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

Paper Details

Date Published: 28 August 2014
PDF: 7 pages
Proc. SPIE 9167, Spintronics VII, 91671O (28 August 2014); doi: 10.1117/12.2063647
Show Author Affiliations
B. Madon, Ecole Polytechnique (France)
H.-J. Drouhin, Ecole Polytechnique (France)
D. Lacour, Institut Jean Lamour, CNRS, Univ. Henri Poincaré (France)
J.-E. Wegrowe, Ecole Polytechnique (France)


Published in SPIE Proceedings Vol. 9167:
Spintronics VII
Henri-Jean Drouhin; Jean-Eric Wegrowe; Manijeh Razeghi, Editor(s)

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