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Coarsening of antiferromagnetic domains in multilayers: the key role of magnetocrystalline anisotropy

Nagy, D L ; Bottyán, L ; Croonenborghs, B ; Deák, L ; Degroote, B ; Dekoster, J ; Lauter, H J ; Lauter-Pasyuk, V ; Leupold, O ; Major, M ; Meersschaut, J ; Nikonov, O ; Petrenko, A ; Rüffer, R ; Spiering, H ; Szilágyi, E

Physical review letters, 2002-04, Vol.88 (15), p.157202-157202, Article 157202 [Periódico revisado por pares]

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Título:
Coarsening of antiferromagnetic domains in multilayers: the key role of magnetocrystalline anisotropy
Autor: Nagy, D L ; Bottyán, L ; Croonenborghs, B ; Deák, L ; Degroote, B ; Dekoster, J ; Lauter, H J ; Lauter-Pasyuk, V ; Leupold, O ; Major, M ; Meersschaut, J ; Nikonov, O ; Petrenko, A ; Rüffer, R ; Spiering, H ; Szilágyi, E
É parte de: Physical review letters, 2002-04, Vol.88 (15), p.157202-157202, Article 157202
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The domain structure of an antiferromagnetic superlattice is studied. Synchrotron Mössbauer and polarized neutron reflectometric maps show micrometer-size primary domain formation as the external field decreases from saturation to remanence. A secondary domain state consisting mainly of at least 1 order of magnitude larger domains is created when a small field along the layer magnetizations induces a bulk-spin-flop transition. The domain-size distribution is reproducibly dependent on the magnetic prehistory. The condition for domain coarsening is shown to be the equilibrium of the external field energy with the anisotropy energy.
Editor: United States
Idioma: Inglês

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