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dc.contributor.authorKruglyak, V.V.en_GB
dc.contributor.authorKeatley, Paul Stevenen_GB
dc.contributor.authorHicken, R.J.en_GB
dc.contributor.authorChildress, J.R.en_GB
dc.contributor.authorKatine, J.A.en_GB
dc.date.accessioned2013-01-11T16:13:48Zen_GB
dc.date.accessioned2013-03-20T13:07:34Z
dc.date.issued2007en_GB
dc.description.abstractThe angular dependence of ultrafast magnetization dynamics in nanomagnets of square shape was studied by magneto-optical pump-probe measurements. In agreement with micromagnetic simulations, both the number of precessional modes and the values of their frequencies were observed to vary as the orientation of the external magnetic field was rotated in the element plane. We show that the observed behavior cannot be explained by the angular variation of the static effective magnetic field. Instead, it is found to originate from a new type of magnetic anisotropy-a dynamic configurational anisotropy, which is due to the variation of the dynamic effective magnetic field. Although always present, the dynamical anisotropy may dominate in nanoscale magnetic elements in which the static configurational anisotropy is suppressed.en_GB
dc.identifier.citationVol. 75 (2), article 024407en_GB
dc.identifier.doi10.1103/PhysRevB.75.024407en_GB
dc.identifier.urihttp://hdl.handle.net/10036/4158en_GB
dc.language.isoenen_GB
dc.publisherAmerican Physical Societyen_GB
dc.relation.urlhttp://dx.doi.org/10.1103/PhysRevB.75.024407en_GB
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevB.75.024407en_GB
dc.subjectBrillouin light scatteringen_GB
dc.subjectferromagnetic resonanceen_GB
dc.subjectmagnetization dynamicsen_GB
dc.subjectNI81FE19 elementen_GB
dc.subjectshapeen_GB
dc.subjectmicromagneticsen_GB
dc.subjectarraysen_GB
dc.subjectfilmsen_GB
dc.subjectdotsen_GB
dc.titleDynamic configurational anisotropy in nanomagnetsen_GB
dc.typeArticleen_GB
dc.date.available2013-01-11T16:13:48Zen_GB
dc.date.available2013-03-20T13:07:34Z
dc.identifier.issn1098-0121en_GB
exeter.article-number024407en_GB
dc.descriptionCopyright © 2007 The American Physical Societyen_GB
dc.identifier.eissn1550-235Xen_GB
dc.identifier.journalPhysical Review B - Condensed Matter and Materials Physicsen_GB


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