Suppression of Walker breakdown in magnetic domain wall propagation through structural control of spin wave emission

Burn, D.M.; Atkinson, D.

doi:10.1063/1.4811750

Suppression of Walker breakdown in magnetic domain wall propagation through structural control of spin wave emission

Burn, D.M.; Atkinson, D.

Authors

D.M. Burn

Professor Del Atkinson del.atkinson@durham.ac.uk
Professor

Abstract

The control of individual magnetic domain walls has potential for future spintronic memory and data processing applications. The speed and reliability of such devices are determined by the dynamic properties of the domain walls. Typically, spin precession limitations lead to Walker breakdown, limiting wall velocity resulting in low mobility. Here, we show the suppression of Walker breakdown by the careful design of small amplitude periodic nanowire structuring to match the periodicity of domain wall spin structure transformations. This opens up a channel for energy dissipation via spin wave emission, allowing a domain wall to maintain its spin structure during propagation.

Citation

Burn, D., & Atkinson, D. (2013). Suppression of Walker breakdown in magnetic domain wall propagation through structural control of spin wave emission. Applied Physics Letters, 102(24), https://doi.org/10.1063/1.4811750

Journal Article Type	Article
Publication Date	Jun 17, 2013
Deposit Date	Jun 22, 2013
Publicly Available Date	Jun 18, 2014
Journal	Applied Physics Letters
Print ISSN	0003-6951
Electronic ISSN	1077-3118
Publisher	American Institute of Physics
Peer Reviewed	Peer Reviewed
Volume	102
Issue	24
DOI	https://doi.org/10.1063/1.4811750

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Copyright Statement
© 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Burn, David M. and Atkinson, Del (2013) Suppression of Walker breakdown in magnetic domain wall propagation through structural control of spin wave emission, Applied Physics Letters, 102, 242414 and may be found at http://dx.doi.org/10.1063/1.4811750.