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

Burn, D.M. and Atkinson, D. (2013) 'Suppression of Walker breakdown in magnetic domain wall propagation through structural control of spin wave emission.', Applied physics letters., 102 (24). p. 242414.

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.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1063/1.4811750
Publisher 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.
Date accepted:No date available
Date deposited:18 June 2014
Date of first online publication:June 2013
Date first made open access:No date available

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