A new approach to (quasi) periodic boundary conditions in micromagnetics: the macro geometry

Fangohr, H., Bordignon, G., Franchin, M., Knittel, A., de Groot, P.A.J. and Fischbacher, T. (2009) A new approach to (quasi) periodic boundary conditions in micromagnetics: the macro geometry. Journal of Applied Physics, 105, 1-3. (doi:10.1063/1.3068637).

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Original Publication URL: http://link.aip.org/link/?JAPIAU/105/07D529/1

Description/Abstract

We present a new method to simulate repetitive ferromagnetic structures. This macro geometry
approach combines treatment of short-range interactions (i.e. the exchange field) as for periodic
boundary conditions with a specification of the arrangement of copies of the primary simulation cell
n order to correctly include effects of the demagnetizing field. This method (i) solves a consistency
problem that prevents the naive application of 3d periodic boundary conditions in micromagnetism
and (ii) is well suited for the efficient simulation of repetitive systems of any size.

Item Type:	Article
ISSNs:	0021-8979 (print)
Related URLs:	http://link.aip.org/link/?JAPI...5/07D529/1
Keywords:	demagnetisation, ferromagnetic materials, micromagnetics
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Divisions:	University Structure - Pre August 2011 > School of Physics and Astronomy University Structure - Pre August 2011 > School of Engineering Sciences > Computational Engineering and Design
Item ID:	64925
Date Deposited:	26 Jan 2009
Last Modified:	08 Jun 2012 12:27
Contributors:	Fangohr, H. (Author) Bordignon, G. (Author) Franchin, M. (Author) Knittel, A. (Author) de Groot, P.A.J. (Author) Fischbacher, T. (Author)
Date:	9 March 2009
Status:	Published
Contact Email Address:	fangohr@soton.ac.uk
URI:	http://eprints.soton.ac.uk/id/eprint/64925

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