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dc.contributor.authorWilks, R.en_GB
dc.contributor.authorHughes, N.D.en_GB
dc.contributor.authorHicken, R.J.en_GB
dc.date.accessioned2013-01-25T15:39:22Zen_GB
dc.date.accessioned2013-03-20T13:04:36Z
dc.date.issued2002en_GB
dc.description.abstractOptically induced ultrafast demagnetization has been studied in a polycrystalline nickel thin film by means of a magneto-optical pump-probe technique. The time and magnetic field dependence of the effect have been explored by measuring changes in the reflectivity, and the rotation and ellipticity associated with the linear magneto-optical Kerr effect. We find that, contrary to an earlier report, there is no significant difference in the time dependence of the rotation and ellipticity signals. Furthermore, we observe dynamic hysteresis loops with strange shapes which we believe result from a slow magnetic reorientation induced by average heating effects. These observations emphasize the importance of studying ultrafast demagnetization at saturation.en_GB
dc.identifier.citationVol. 91 (10), pp. 8670 - 8672en_GB
dc.identifier.doi10.1063/1.1450833en_GB
dc.identifier.urihttp://hdl.handle.net/10036/4208en_GB
dc.language.isoenen_GB
dc.publisherAmerican Institute of Physicsen_GB
dc.relation.urlhttp://dx.doi.org/10.1063/1.1450833en_GB
dc.subjectnickelen_GB
dc.subjectmagnetocaloric effectsen_GB
dc.subjectferromagnetic materialsen_GB
dc.subjectmagnetic thin filmsen_GB
dc.subjectspin dynamicsen_GB
dc.subjectdemagnetisationen_GB
dc.subjectphotomagnetic effecten_GB
dc.subjectKerr magneto-optical effecten_GB
dc.subjecttime resolved spectraen_GB
dc.subjectmagnetoreflectanceen_GB
dc.subjectoptical rotationen_GB
dc.subjectmagnetic hysteresisen_GB
dc.titleInvestigation of ultrafast spin dynamics in a Ni thin filmen_GB
dc.typeArticleen_GB
dc.date.available2013-01-25T15:39:22Zen_GB
dc.date.available2013-03-20T13:04:36Z
dc.identifier.issn0021-8979en_GB
dc.descriptionCopyright © 2002 American Institute of Physicsen_GB
dc.identifier.eissn1089-7550en_GB
dc.identifier.journalJournal of Applied Physicsen_GB


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