Structure-related effects on the domain wall migration in atomic point contacts

We investigate the interplay between magnetic and structural dynamics in magnetic point contacts under current-carrying conditions. In particular we address the dependence of the results upon the specific parameterization of the elastic properties of the material. Our analysis shows a strong influen...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2007-09, Vol.316 (2), p.e934-e936
Main Authors: Stamenova, Maria, Sahoo, Sudhakar, Todorov, Tchavdar N., Sanvito, Stefano
Format: Article
Language:English
Subjects:
Domain wall migration
Spin-polarized transport
Structural relaxation
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Summary:We investigate the interplay between magnetic and structural dynamics in magnetic point contacts under current-carrying conditions. In particular we address the dependence of the results upon the specific parameterization of the elastic properties of the material. Our analysis shows a strong influence of the structural relaxation on the energy barrier for domain wall migration, but a negligible dependence of the mechanical properties on the magnetic state. These results are stable against the various material specific choices of parameters describing different transition metals.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2007.03.147