Domain wall propagation through spin wave emission

We theoretically study field-induced domain wall motion in an electrically insulating ferromagnet with hard- and easy-axis anisotropies. Domain walls can propagate along a dissipationless wire through spin wave emission locked into the known soliton velocity at low fields. In the presence of damping...

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Bibliographic Details
Published in:Physical review letters 2012-10, Vol.109 (16), p.167209-167209, Article 167209
Main Authors: Wang, X S, Yan, P, Shen, Y H, Bauer, G E W, Wang, X R
Format: Article
Language:English
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Summary:We theoretically study field-induced domain wall motion in an electrically insulating ferromagnet with hard- and easy-axis anisotropies. Domain walls can propagate along a dissipationless wire through spin wave emission locked into the known soliton velocity at low fields. In the presence of damping, the usual Walker rigid-body propagation mode can become unstable for a magnetic field smaller than the Walker breakdown field.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.109.167209