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Journal of Magnetism and Magnetic Materials
Volume 184, Issue 2 , 23 April 1998, Pages 179-183

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doi:10.1016/S0304-8853(97)01126-8    How to Cite or Link Using DOI (Opens New Window)  

Micromagnetic calculation of the thickness dependence of surface and interior width of asymmetrical Bloch walls1

W. Ravea, * and A. Hubertb

a IFW Dresden, Helmholtzstraße 20, D-01069 Dresden, Germany
b Institut für Werkstoffwissenschaften der Universität Erlangen-Nürnberg, Martenstr. 7, 91058 Erlangen, Germany

Received 30 September 1997. Available online 29 December 1998.


Abstract

The wall width of asymmetrical Bloch walls was calculated numerically over a wide thickness range. Careful extrapolation was used to eliminate numerical finite size effects. On the surface a larger wall width as in the interior was expected and found due to the asymmetrical character of the wall. However, no saturation of the surface wall width with increasing thickness was observed. Instead we found a power law for the surface wall width δw as a function of the reduced thickness D of the form δwproportional toD0.14 within the investigated thickness range.

Author Keywords: Domain wall; Micromagnetism; Numerical simulation

PACS classification codes: 75.60

Index Terms: Magnetic materials; Magnetism; Magnetic domains; Computer simulation; Micromagnetism; Bloch walls


1Presented at the ICM'97 in Cairns, Australia.

*Corresponding author. Tel.: +49 351 465 9531; fax: +49 351 465 9537; e-mail: rave@ifw-dresden.de.



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Journal of Magnetism and Magnetic Materials
Volume 184, Issue 2 , 23 April 1998, Pages 179-183


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