| DOI | Trouver le DOI : https://doi.org/10.1016/j.physb.2004.10.042 |
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| Auteur | Rechercher : Gierlings, M.; Rechercher : Prandolini, M.; Rechercher : Fritzsche, Helmut1; Rechercher : Gruyters, M.; Rechercher : Riegel, D. |
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| Affiliation | - Conseil national de recherches du Canada. Centre canadien de faisceaux de neutrons du CNRC
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| Format | Texte, Article |
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| Sujet | Exchange bias; Off-specular scattering; Polarized neutron reflectometry |
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| Résumé | We report on the observation of the effects of exchange bias on the magnetization reversal processes in a [Co/CoO/Au]20 system using polarized neutron reflectometry (PNR). The focus in this study is the investigation of the off-specular scattering of neutrons from magnetic domain structures during the magnetization reversal. In a previous PNR study on the same system, an asymmetry in magnetization reversal has been observed on opposite sides of the same hysteresis loop. For the decreasing field branch, the reversal was found to be dominated by domain wall motion of domains directed parallel or antiparallel to the applied field. In contrast, the reversal on the increasing field branch was characterized by rotation of magnetization. A significant loss of intensity was found for the specular reflected neutrons, while off-specular scattering experiments reveal that this magnetization reversal is not determined by coherent rotation but rather by a breaking up into smaller domains with different orientations. |
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| Date de publication | 2005-02-15 |
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| Dans | |
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| Numéro NPARC | 12327684 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | ff3bd3a8-8127-4d23-91bc-4f0c8863b80b |
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| Enregistrement créé | 2009-09-10 |
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| Enregistrement modifié | 2020-04-07 |
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