Micromagnetic modelling of ferromagnetic cones
Micromagnetic modelling of ferromagnetic cones
Using micromagnetic modelling, we calculate numerically the magnetization reversal of soft permalloy cones of height and diameter View the MathML source. By varying the cone height and the base diameter in steps of 10 and 5 nm, respectively, we map the remanent states systematically. We observe reversal mechanisms with remanent configurations ranging from single domains at small diameters, through buckle states and complex C-states through to vortex states at larger diameters and heights. We present a phase diagram of the remanent states of magnetization as a function of diameter and height. For the largest cones investigated, we find magnetization configurations in the reversal process which consist of two superimposed vortices with cores pointing in orthogonal directions.
micromagnetic modelling, cones, OOMMF, magpar, computer simulation
234-238
Boardman, Richard P.
5818d677-5732-4e8a-a342-7164dbb10df1
Fangohr, Hans
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Fairman, Matthew J.
2214bf59-2c2b-470b-ab30-10cc59615835
Zimmermann, Jürgen
44cd9549-eef9-4199-9032-774471b6a4df
Cox, Simon J.
0e62aaed-24ad-4a74-b996-f606e40e5c55
Zhukov, Alexander A.
75d64070-ea67-4984-ae75-4d5798cd3c61
de Groot, P.A.J.
98c21141-cf90-4e5c-8f2b-d2aae8efb84d
May 2007
Boardman, Richard P.
5818d677-5732-4e8a-a342-7164dbb10df1
Fangohr, Hans
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Fairman, Matthew J.
2214bf59-2c2b-470b-ab30-10cc59615835
Zimmermann, Jürgen
44cd9549-eef9-4199-9032-774471b6a4df
Cox, Simon J.
0e62aaed-24ad-4a74-b996-f606e40e5c55
Zhukov, Alexander A.
75d64070-ea67-4984-ae75-4d5798cd3c61
de Groot, P.A.J.
98c21141-cf90-4e5c-8f2b-d2aae8efb84d
Boardman, Richard P., Fangohr, Hans, Fairman, Matthew J., Zimmermann, Jürgen, Cox, Simon J., Zhukov, Alexander A. and de Groot, P.A.J.
(2007)
Micromagnetic modelling of ferromagnetic cones.
Journal of Magnetism and Magnetic Materials, 312 (1), .
(doi:10.1016/j.jmmm.2006.10.731).
Abstract
Using micromagnetic modelling, we calculate numerically the magnetization reversal of soft permalloy cones of height and diameter View the MathML source. By varying the cone height and the base diameter in steps of 10 and 5 nm, respectively, we map the remanent states systematically. We observe reversal mechanisms with remanent configurations ranging from single domains at small diameters, through buckle states and complex C-states through to vortex states at larger diameters and heights. We present a phase diagram of the remanent states of magnetization as a function of diameter and height. For the largest cones investigated, we find magnetization configurations in the reversal process which consist of two superimposed vortices with cores pointing in orthogonal directions.
Text
Boar_07.pdf
- Accepted Manuscript
More information
Published date: May 2007
Keywords:
micromagnetic modelling, cones, OOMMF, magpar, computer simulation
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 57096
URI: http://eprints.soton.ac.uk/id/eprint/57096
ISSN: 0304-8853
PURE UUID: c27cba30-68e4-4980-8cd7-e6be7b836bcf
Catalogue record
Date deposited: 13 Aug 2008
Last modified: 16 Mar 2024 03:36
Export record
Altmetrics
Contributors
Author:
Matthew J. Fairman
Author:
Jürgen Zimmermann
Author:
Alexander A. Zhukov
Author:
P.A.J. de Groot
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
