Effect of exchange springs on the coercivity of DyFe2-YFe2 superlattices
Effect of exchange springs on the coercivity of DyFe2-YFe2 superlattices
The coercivity of MBE-grown Laves-phase DyFe2–YFe2 thin-layered (50 Å) superlattice samples, with a (1 1 0) growth direction, can be varied by adjusting the relative thickness of the YFe2 and DyFe2 layers. However, for sufficiently thick layers, the coercivity is found to be dependent on the thickness of the YFe2 layers, even when the ratio of DyFe2/YFe2 is fixed. This feature is illustrated using the superlattice films [wDyFe2/wYFe2]×40, with w=75, 100 and 150 Å. The underlying reason for the decrease in coercivity with increasing width w, is traced to the action of the magnetic exchange springs in the YFe2 layers.
magnetic multilayers, MBE, exchange-spring magnets, coercivity
1714-1716
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
Sawicki, M.
c96b5e84-c885-4bd3-89e8-c69e48a40d8d
Ward, R.C.C.
b5eaa153-e136-4555-8b07-325a4b5329cb
Wells, M.R.
eb14a225-4803-4e6c-87b6-c1d1e5b8483d
2001
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
Sawicki, M.
c96b5e84-c885-4bd3-89e8-c69e48a40d8d
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., Sawicki, M., Ward, R.C.C. and Wells, M.R.
(2001)
Effect of exchange springs on the coercivity of DyFe2-YFe2 superlattices.
Journal of Magnetism and Magnetic Materials, 226 (2), .
(doi:10.1016/S0304-8853(00)00869-6).
Abstract
The coercivity of MBE-grown Laves-phase DyFe2–YFe2 thin-layered (50 Å) superlattice samples, with a (1 1 0) growth direction, can be varied by adjusting the relative thickness of the YFe2 and DyFe2 layers. However, for sufficiently thick layers, the coercivity is found to be dependent on the thickness of the YFe2 layers, even when the ratio of DyFe2/YFe2 is fixed. This feature is illustrated using the superlattice films [wDyFe2/wYFe2]×40, with w=75, 100 and 150 Å. The underlying reason for the decrease in coercivity with increasing width w, is traced to the action of the magnetic exchange springs in the YFe2 layers.
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Published date: 2001
Keywords:
magnetic multilayers, MBE, exchange-spring magnets, coercivity
Identifiers
Local EPrints ID: 57057
URI: http://eprints.soton.ac.uk/id/eprint/57057
ISSN: 0304-8853
PURE UUID: 4647a59d-41d3-4fdf-8b06-2d777a37b2a4
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Date deposited: 14 Aug 2008
Last modified: 15 Mar 2024 11:04
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Author:
J.M.L. Beaujour
Author:
G.J. Bowden
Author:
S. Gordeev
Author:
P.A.J. de Groot
Author:
B.D. Rainford
Author:
M. Sawicki
Author:
R.C.C. Ward
Author:
M.R. Wells
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