| Home > Publications database > The antiferromagnetic structures of IrMn$_{3}$ and their influence on exchange-bias > print |
| 001 | 201601 | ||
| 005 | 20240610121311.0 | ||
| 024 | 7 | _ | |a 10.1038/srep02412 |2 doi |
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| 100 | 1 | _ | |a Kohn, A. |0 P:(DE-HGF)0 |b 0 |e Corresponding Author |
| 245 | _ | _ | |a The antiferromagnetic structures of IrMn$_{3}$ and their influence on exchange-bias |
| 260 | _ | _ | |a London |c 2013 |b Nature Publishing Group |
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| 520 | _ | _ | |a We have determined the magnetic structures of single-crystal thin-films of IrMn3 for the crystallographic phases of chemically-ordered L12, and for chemically-disordered face-centred-cubic, which is the phase typically chosen for information-storage devices. For the chemically-ordered L12 thin-film, we find the same triangular magnetic structure as reported for the bulk material. We determine the magnetic structure of the chemically-disordered face-centred-cubic alloy for the first time, which differs from theoretical predictions, with magnetic moments tilted away from the crystal diagonals towards the face-planes. We study the influence of these two antiferromagnetic structures on the exchange-bias properties of an epitaxial body-centred-cubic Fe layer showing that magnetization reversal mechanism and bias-field in the ferromagnetic layer is altered significantly. We report a change of reversal mechanism from in-plane nucleation of 90° domain-walls when coupled to the newly reported cubic structure towards a rotational process, including an out-of-plane magnetization component when coupled to the L12 triangular structure. |
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| 700 | 1 | _ | |a McIntyre, G. J. |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Ward, R. C. C. |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Goff, J. P. |0 P:(DE-HGF)0 |b 5 |
| 773 | _ | _ | |a 10.1038/srep02412 |g Vol. 3 |0 PERI:(DE-600)2615211-3 |p 2045 - 2322 |t Scientific reports |v 3 |y 2013 |x 2045-2322 |
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