TY - JOUR
T1 - Magnonic domain wall heat conductance in ferromagnetic wires
AU - Yan, Peng
AU - Bauer, Gerrit E.W.
PY - 2012/8/21
Y1 - 2012/8/21
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84865201802&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84865201802&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.109.087202
DO - 10.1103/PhysRevLett.109.087202
M3 - Article
AN - SCOPUS:84865201802
VL - 109
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 8
M1 - 087202
ER -