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Exchange springs in YFe2 dominated DyFe2-YFe2 superlattices

Exchange springs in YFe2 dominated DyFe2-YFe2 superlattices
Exchange springs in YFe2 dominated DyFe2-YFe2 superlattices
MBE methods have been used to grow single–crystal Laves–phase DyFe2–YFe2 superlattice samples with a (1 1 0) growth direction. In this paper, magnetisation curves for the YFe2 dominated multilayer samples [wDyFe2/4wYFe2]×N, where w=20, 30, 40, and 50 Å, and N=40, 27, 20, and 16, respectively, are presented and discussed. It will be shown that the measured M–H loops are dominated by magnetic exchange springs, which reduce the magnetic coercivity, considerably. In particular, it is possible to engineer samples with a negative coercivity.
magnetic superlattices, MBE, exchange-spring magnets
0304-8853
1870-1872
Beaujour, J.M.L.
76365491-7a41-45d2-8cf4-f819474215a8
Bowden, G.J.
f73a1c01-4d38-4170-bf30-9ebfa4283807
Gordeev, S.
6348f219-278f-4e8b-a739-9e6aba55c855
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.
76365491-7a41-45d2-8cf4-f819474215a8
Bowden, G.J.
f73a1c01-4d38-4170-bf30-9ebfa4283807
Gordeev, S.
6348f219-278f-4e8b-a739-9e6aba55c855
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., Bowden, G.J., Gordeev, S., de Groot, P.A.J., Rainford, B.D., Ward, R.C.C. and Wells, M.R. (2001) Exchange springs in YFe2 dominated DyFe2-YFe2 superlattices. Journal of Magnetism and Magnetic Materials, 226 (2(3)), 1870-1872. (doi:10.1016/S0304-8853(00)01136-7).

Record type: Article

Abstract

MBE methods have been used to grow single–crystal Laves–phase DyFe2–YFe2 superlattice samples with a (1 1 0) growth direction. In this paper, magnetisation curves for the YFe2 dominated multilayer samples [wDyFe2/4wYFe2]×N, where w=20, 30, 40, and 50 Å, and N=40, 27, 20, and 16, respectively, are presented and discussed. It will be shown that the measured M–H loops are dominated by magnetic exchange springs, which reduce the magnetic coercivity, considerably. In particular, it is possible to engineer samples with a negative coercivity.

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More information

Published date: 2001
Keywords: magnetic superlattices, MBE, exchange-spring magnets

Identifiers

Local EPrints ID: 57059
URI: https://eprints.soton.ac.uk/id/eprint/57059
ISSN: 0304-8853
PURE UUID: 06fc0ae7-649d-44c6-b5ec-0fe285910272

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Date deposited: 14 Aug 2008
Last modified: 05 Oct 2018 12:03

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