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Transition to Linear Domain Walls in Nanoconstrictions

Kazantseva, N., Wieser, R. and Nowak, U. (2005) Transition to Linear Domain Walls in Nanoconstrictions. Physical Review Letters, 94 (3). 037206-1. ISSN 1079-7114

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Domain walls in nanoconstrictions are investigated with a focus on thermal properties. In general, the magnetization component perpendicular to the easy axis which in a domain wall usually occurs has a value different from the easy-axis bulk magnetization value with a separate phase transition at a critical temperature below the Curie temperature. Since this effect is the more pronounced the smaller the domain wall width is, we investigate it especially in domain walls with a confined geometry, using analytical arguments, mean-field theory, and Monte Carlo simulations. Our findings may contribute to the understanding of magnetoresistive effects in domain walls with sizes of only a few atomic layers, as, e.g., in nanocontacts or nanoconstrictions.

Item Type: Article
Institution: The University of York
Academic Units: The University of York > Physics (York)
Depositing User: York RAE Import
Date Deposited: 23 Feb 2009 14:54
Last Modified: 23 Feb 2009 14:54
Published Version: http://dx.doi.org/10.1103/PhysRevLett.94.037206
Status: Published
Publisher: The American Physical Society.
Identification Number: 10.1103/PhysRevLett.94.037206
URI: http://eprints.whiterose.ac.uk/id/eprint/7258

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