Magnons versus electrons in thermal spin transport through metallic interfaces

M. Beens, J.P. Heremans, Yaroslav Tserkovnyak, R.A. Duine

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

6 Citaten (Scopus)
4 Downloads (Pure)


We develop a theory for spin transport in magnetic metals that treats the contribution of magnons and electrons on equal footing. As an application, we consider thermally-driven spin injection across an interface between a magnetic metal and a normal metal, i.e. the spin-dependent Seebeck effect. We show that the ratio between magnonic and electronic contribution scales as √ T/T/c F/Tc, with the Fermi temperature TF and the Curie temperature TC. Since, typically, TC≪ TF, the magnonic contribution may dominate the thermal spin injection, even though the interface is more transparent for electronic spin current.

Originele taal-2Engels
Aantal pagina's7
TijdschriftJournal of Physics D: Applied Physics
Nummer van het tijdschrift39
StatusGepubliceerd - 3 okt 2018


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