Proposal for a standard micromagnetic problem: spin wave dispersion in a magnonic waveguide
Proposal for a standard micromagnetic problem: spin wave dispersion in a magnonic waveguide
In this paper, we propose a standard micromagnetic problem, of a nanostripe of permalloy. We study the magnetization dynamics and describe methods of extracting features from simulations. Spin wave dispersion curves, relating frequency and wave vector, are obtained for wave propagation in different directions relative to the axis of the waveguide and the external applied field. Simulation results using both finite element (Nmag) and finite difference (OOMMF) methods are compared against analytic results, for different ranges of the wave vector.
524-529
Venkat, Guru
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Franchin, Matteo
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Dmytriiev, O.
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Mruczkiewicz, M.
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Fangohr, H.
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Barman, A.
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Krawczyk, M.
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Prabhakar, A.
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January 2013
Venkat, Guru
5b8f07f3-68ae-46fb-bc69-fb5c2c74b866
Franchin, Matteo
9e00aaa2-959e-420f-854c-3b43aece85e3
Dmytriiev, O.
d21ec0f9-b61a-487c-8aac-dbbf06c8350b
Mruczkiewicz, M.
e8c737b2-20e4-4880-836e-0454121af9da
Fangohr, H.
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Barman, A.
37f33704-c70d-43da-b803-0de7eb4107a4
Krawczyk, M.
f31fee15-d470-4b8a-a382-e898b1d45624
Prabhakar, A.
dd188e7d-1e2e-4b42-8c61-e094e0678375
Venkat, Guru, Franchin, Matteo, Dmytriiev, O., Mruczkiewicz, M., Fangohr, H., Barman, A., Krawczyk, M. and Prabhakar, A.
(2013)
Proposal for a standard micromagnetic problem: spin wave dispersion in a magnonic waveguide.
IEEE Transactions on Magnetics, 49 (1), .
(doi:10.1109/TMAG.2012.2206820).
Abstract
In this paper, we propose a standard micromagnetic problem, of a nanostripe of permalloy. We study the magnetization dynamics and describe methods of extracting features from simulations. Spin wave dispersion curves, relating frequency and wave vector, are obtained for wave propagation in different directions relative to the axis of the waveguide and the external applied field. Simulation results using both finite element (Nmag) and finite difference (OOMMF) methods are compared against analytic results, for different ranges of the wave vector.
Text
Venkat_etal_Standardproblem-dispersion-relation-2012.pdf
- Author's Original
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Published date: January 2013
Organisations:
Computational Engineering & Design Group
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Local EPrints ID: 351894
URI: http://eprints.soton.ac.uk/id/eprint/351894
ISSN: 0018-9464
PURE UUID: 3392ba72-c3d3-41b6-b9a1-86a410dc38f9
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Date deposited: 30 Apr 2013 13:12
Last modified: 15 Mar 2024 03:03
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Author:
Guru Venkat
Author:
Matteo Franchin
Author:
O. Dmytriiev
Author:
M. Mruczkiewicz
Author:
A. Barman
Author:
M. Krawczyk
Author:
A. Prabhakar
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