Spin configurations and negative coercivity in epitaxially grown 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. In particular, the magnetic properties of the YFe2 dominated multilayer samples [wDyFe2/4wYFe2]XN with w=20, 30, 40, 45, 50, and 55 Å are presented and di...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2001
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| _version_ | 1797090617466028032 |
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| author | Gordeev, SN Beaujour, J Bowden, G de Groot, P Rainford, B Ward, R Wells, MR |
| author_facet | Gordeev, SN Beaujour, J Bowden, G de Groot, P Rainford, B Ward, R Wells, MR |
| author_sort | Gordeev, SN |
| collection | OXFORD |
| description | Molecular beam epitaxial methods have been used to grow single crystal Laves phase DyFe2/YFe2 superlattice samples with a (110) growth direction. In particular, the magnetic properties of the YFe2 dominated multilayer samples [wDyFe2/4wYFe2]XN with w=20, 30, 40, 45, 50, and 55 Å are presented and discussed. In principle, the multilayer films should possess similar magnetic properties because they are all nominally Dy0.2Y0.8Fe2. However, it is shown that their magnetic properties depend strongly on the thickness of the DyFe2 layers w. Those films with w≥45 Å possess negative coercivities, while those with w≤40 Å are positive. It is argued that this behavior can be understood in terms of a strong increase of the intrinsic coercivity of the DyFe2/YFe2 superlattice, taken as a whole, as w is reduced. For w≤40 Å almost none of the DyFe2 moments can be flipped over in the available field range (12 T). © 2001 American Institute of Physics. |
| first_indexed | 2024-03-07T03:21:14Z |
| format | Journal article |
| id | oxford-uuid:b7818fc2-bd84-4364-a4c4-52f8860c3617 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:21:14Z |
| publishDate | 2001 |
| record_format | dspace |
| spelling | oxford-uuid:b7818fc2-bd84-4364-a4c4-52f8860c36172022-03-27T04:49:05ZSpin configurations and negative coercivity in epitaxially grown DyFe2/YFe2 superlatticesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b7818fc2-bd84-4364-a4c4-52f8860c3617EnglishSymplectic Elements at Oxford2001Gordeev, SNBeaujour, JBowden, Gde Groot, PRainford, BWard, RWells, MRMolecular beam epitaxial methods have been used to grow single crystal Laves phase DyFe2/YFe2 superlattice samples with a (110) growth direction. In particular, the magnetic properties of the YFe2 dominated multilayer samples [wDyFe2/4wYFe2]XN with w=20, 30, 40, 45, 50, and 55 Å are presented and discussed. In principle, the multilayer films should possess similar magnetic properties because they are all nominally Dy0.2Y0.8Fe2. However, it is shown that their magnetic properties depend strongly on the thickness of the DyFe2 layers w. Those films with w≥45 Å possess negative coercivities, while those with w≤40 Å are positive. It is argued that this behavior can be understood in terms of a strong increase of the intrinsic coercivity of the DyFe2/YFe2 superlattice, taken as a whole, as w is reduced. For w≤40 Å almost none of the DyFe2 moments can be flipped over in the available field range (12 T). © 2001 American Institute of Physics. |
| spellingShingle | Gordeev, SN Beaujour, J Bowden, G de Groot, P Rainford, B Ward, R Wells, MR Spin configurations and negative coercivity in epitaxially grown DyFe2/YFe2 superlattices |
| title | Spin configurations and negative coercivity in epitaxially grown DyFe2/YFe2 superlattices |
| title_full | Spin configurations and negative coercivity in epitaxially grown DyFe2/YFe2 superlattices |
| title_fullStr | Spin configurations and negative coercivity in epitaxially grown DyFe2/YFe2 superlattices |
| title_full_unstemmed | Spin configurations and negative coercivity in epitaxially grown DyFe2/YFe2 superlattices |
| title_short | Spin configurations and negative coercivity in epitaxially grown DyFe2/YFe2 superlattices |
| title_sort | spin configurations and negative coercivity in epitaxially grown dyfe2 yfe2 superlattices |
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