Magnonic domain wall heat conductance in ferromagnetic wires

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27 Citations (Scopus)


We present a theoretical study of magnon-mediated heat transport in electrically insulating ferromagnetic wires containing a domain wall (DW). In the regime of validity of continuum micromagnetism, a DW is found to have no effect on the heat conductance. However, spin waves are found to be reflected by DWs with widths of a few lattice spacings, which is associated with emergence of an additional spin wave bound state. The resulting DW heat conductance should be significant for thin films of yttrium iron garnet with sharply defined magnetic domains.

Original languageEnglish
Article number087202
JournalPhysical review letters
Issue number8
Publication statusPublished - 2012 Aug 21

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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