Room temperature magneto optic exchange springs in DyFe2/YFe2DyFe2/YFe2 superlattices
Room temperature magneto optic exchange springs in DyFe2/YFe2DyFe2/YFe2 superlattices
Exchange springs in hard-soft DyFe2/YFe2 superlattices at room temperature, studied by the magneto optic Kerr effect, are presented and discussed. The measured hysteresis loops clearly show the formation of exchange springs. Deviations from the previously established View the MathML source law for the bending field on the soft layer thickness is observed.
This is attributed to (i) the reduced anisotropy of the hard layer, and (ii) the presence of anisotropy in the soft layer, at room temperature. A one dimensional model of exchange coupled spins is employed to understand the observed behavior. This involves solving the Landau–Lifshitz–Gilbert equations. Good agreement is found between the experimental and simulated results.
DyFe2/YFe2 superlattice, magneto optic kerr effect, micromagnetic simulation
586-589
Wang, D.
8c543acd-825f-4f34-948a-dcd2e289f0aa
Morrison, C. G.
02792005-d4b1-4021-b0c2-2e34984c6e6e
Buckingham, A.R.
548e73f8-e1ed-4bc7-bf30-792048929658
Bowden, D. J.
31cc9c91-f092-4ea0-bce2-ffc4ff99822c
Ward, R. C. C.
16357170-bc96-4110-b19d-54f499306219
de Groot, P.A.J.
98c21141-cf90-4e5c-8f2b-d2aae8efb84d
March 2009
Wang, D.
8c543acd-825f-4f34-948a-dcd2e289f0aa
Morrison, C. G.
02792005-d4b1-4021-b0c2-2e34984c6e6e
Buckingham, A.R.
548e73f8-e1ed-4bc7-bf30-792048929658
Bowden, D. J.
31cc9c91-f092-4ea0-bce2-ffc4ff99822c
Ward, R. C. C.
16357170-bc96-4110-b19d-54f499306219
de Groot, P.A.J.
98c21141-cf90-4e5c-8f2b-d2aae8efb84d
Wang, D., Morrison, C. G., Buckingham, A.R., Bowden, D. J., Ward, R. C. C. and de Groot, P.A.J.
(2009)
Room temperature magneto optic exchange springs in DyFe2/YFe2DyFe2/YFe2 superlattices.
Journal of Magnetism and Magnetic Materials, 321 (6), .
(doi:10.1016/j.jmmm.2008.09.031).
Abstract
Exchange springs in hard-soft DyFe2/YFe2 superlattices at room temperature, studied by the magneto optic Kerr effect, are presented and discussed. The measured hysteresis loops clearly show the formation of exchange springs. Deviations from the previously established View the MathML source law for the bending field on the soft layer thickness is observed.
This is attributed to (i) the reduced anisotropy of the hard layer, and (ii) the presence of anisotropy in the soft layer, at room temperature. A one dimensional model of exchange coupled spins is employed to understand the observed behavior. This involves solving the Landau–Lifshitz–Gilbert equations. Good agreement is found between the experimental and simulated results.
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Published date: March 2009
Keywords:
DyFe2/YFe2 superlattice, magneto optic kerr effect, micromagnetic simulation
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University of Southampton
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Local EPrints ID: 143925
URI: http://eprints.soton.ac.uk/id/eprint/143925
ISSN: 0304-8853
PURE UUID: 2e091ab7-e6e1-4501-8ee6-357b7ec569eb
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Date deposited: 13 Apr 2010 15:53
Last modified: 14 Mar 2024 00:44
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Author:
D. Wang
Author:
C. G. Morrison
Author:
A.R. Buckingham
Author:
D. J. Bowden
Author:
R. C. C. Ward
Author:
P.A.J. de Groot
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