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Negative coercivity in epitaxially grown (110) DyFe2/YFe2 superlattices

Negative coercivity in epitaxially grown (110) DyFe2/YFe2 superlattices
Negative coercivity in epitaxially grown (110) DyFe2/YFe2 superlattices
Molecular beam epitaxial methods have been used to grow single crystal Laves phase DyFe2 /YFe2 superlattice samples with a (110) growth direction. Detailed magnetization curves have been obtained for YFe2 dominated multilayer samples [wDyFe2/4wYFe2] x16 with w = 45, 50, and 55 Å. In particular, it is shown that the formation of magnetic exchange springs in the magnetically soft YFe2 layers, can be used to engineer multilayer samples with a negative coercivity. Further, by using asymmetric field cycling procedures, we have investigated the irreversible parts of the M–B loop, associated with the switching of the DyFe2 multilayers.
0003-6951
964-966
Beaujour, J-M.L.
5cb1e799-4872-4fe1-b240-58e0a4d92c8e
Gordeev, S.N.
2d51d5e7-5fbd-4753-8eb8-a21ff61deb07
Bowden, G.J.
f73a1c01-4d38-4170-bf30-9ebfa4283807
de Groot, P.A. J.
98c21141-cf90-4e5c-8f2b-d2aae8efb84d
Rainford, B.D.
a57f1153-bbba-49a3-bffc-0d96087156a0
Ward, R.C.C.
b5eaa153-e136-4555-8b07-325a4b5329cb
Wells, M.R.
eb14a225-4803-4e6c-87b6-c1d1e5b8483d
Beaujour, J-M.L.
5cb1e799-4872-4fe1-b240-58e0a4d92c8e
Gordeev, S.N.
2d51d5e7-5fbd-4753-8eb8-a21ff61deb07
Bowden, G.J.
f73a1c01-4d38-4170-bf30-9ebfa4283807
de Groot, P.A. J.
98c21141-cf90-4e5c-8f2b-d2aae8efb84d
Rainford, B.D.
a57f1153-bbba-49a3-bffc-0d96087156a0
Ward, R.C.C.
b5eaa153-e136-4555-8b07-325a4b5329cb
Wells, M.R.
eb14a225-4803-4e6c-87b6-c1d1e5b8483d

Beaujour, J-M.L., Gordeev, S.N., Bowden, G.J., de Groot, P.A. J., Rainford, B.D., Ward, R.C.C. and Wells, M.R. (2001) Negative coercivity in epitaxially grown (110) DyFe2/YFe2 superlattices. Applied Physics Letters, 78 (7), 964-966. (doi:10.1063/1.1344594).

Record type: Article

Abstract

Molecular beam epitaxial methods have been used to grow single crystal Laves phase DyFe2 /YFe2 superlattice samples with a (110) growth direction. Detailed magnetization curves have been obtained for YFe2 dominated multilayer samples [wDyFe2/4wYFe2] x16 with w = 45, 50, and 55 Å. In particular, it is shown that the formation of magnetic exchange springs in the magnetically soft YFe2 layers, can be used to engineer multilayer samples with a negative coercivity. Further, by using asymmetric field cycling procedures, we have investigated the irreversible parts of the M–B loop, associated with the switching of the DyFe2 multilayers.

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Published date: February 2001

Identifiers

Local EPrints ID: 14737
URI: http://eprints.soton.ac.uk/id/eprint/14737
ISSN: 0003-6951
PURE UUID: eabad8e5-cc8f-4ca5-bbb5-a7a7843116ef

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Date deposited: 01 Mar 2005
Last modified: 08 Jan 2022 18:49

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Contributors

Author: J-M.L. Beaujour
Author: S.N. Gordeev
Author: G.J. Bowden
Author: P.A. J. de Groot
Author: B.D. Rainford
Author: R.C.C. Ward
Author: M.R. Wells

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