Micromagnetic simulations of magnetoelectric materials
Micromagnetic simulations of magnetoelectric materials
Some magnetic materials show a magnetoelectric coupling between inhomogeneous magnetization patterns and electric polarization that is sufficiently strong to allow external control of magnetization structure by electric fields. Numerical simulations of “magnetoelectric” materials of this type require an extension of the standard micromagnetic model which conceptually parallels the introduction of spin-current interaction terms. We show how the micromagnetic simulator “Nmag” can be extended to support the inhomogeneous magnetoelectric interaction term and also give a simple self-contained example for simulating the micromagnetic dynamics of a magnetoelectric system in the presence of an external electric field.
exchange interactions (electron), magnetic structure, magnetisation, magnetoelectric effects, micromagnetics, spin dynamics, spin polarised transport
109-112
Fischbacher, Thomas
d3282f31-0a6a-4d19-80d0-e3bebc12f67a
Franchin, Matteo
9e00aaa2-959e-420f-854c-3b43aece85e3
Fangohr, Hans
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
13 April 2011
Fischbacher, Thomas
d3282f31-0a6a-4d19-80d0-e3bebc12f67a
Franchin, Matteo
9e00aaa2-959e-420f-854c-3b43aece85e3
Fangohr, Hans
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Fischbacher, Thomas, Franchin, Matteo and Fangohr, Hans
(2011)
Micromagnetic simulations of magnetoelectric materials.
Journal of Applied Physics, 109 (07D352), .
(doi:10.1063/1.3565999).
Abstract
Some magnetic materials show a magnetoelectric coupling between inhomogeneous magnetization patterns and electric polarization that is sufficiently strong to allow external control of magnetization structure by electric fields. Numerical simulations of “magnetoelectric” materials of this type require an extension of the standard micromagnetic model which conceptually parallels the introduction of spin-current interaction terms. We show how the micromagnetic simulator “Nmag” can be extended to support the inhomogeneous magnetoelectric interaction term and also give a simple self-contained example for simulating the micromagnetic dynamics of a magnetoelectric system in the presence of an external electric field.
Text
Fischbacher_etal_JAP_109_07D352_2011.pdf
- Accepted Manuscript
More information
Published date: 13 April 2011
Keywords:
exchange interactions (electron), magnetic structure, magnetisation, magnetoelectric effects, micromagnetics, spin dynamics, spin polarised transport
Identifiers
Local EPrints ID: 186529
URI: http://eprints.soton.ac.uk/id/eprint/186529
ISSN: 0021-8979
PURE UUID: 36a3b5c8-a7b2-428a-b63a-70d3588c0e3e
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Date deposited: 13 May 2011 12:54
Last modified: 15 Mar 2024 03:03
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Contributors
Author:
Thomas Fischbacher
Author:
Matteo Franchin
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