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dc.contributor.authorWilks, R.en_GB
dc.contributor.authorHicken, R.J.en_GB
dc.contributor.authorAli, M.en_GB
dc.contributor.authorHickey, B.J.en_GB
dc.date.accessioned2013-01-18T10:20:59Zen_GB
dc.date.accessioned2013-03-20T13:12:19Z
dc.date.issued2005en_GB
dc.description.abstractUltrafast demagnetization has been studied in Si/Pt(160 Å)/[Co25Ni75(x)/Pt(8 Å)]20 (x = 3, 4.5, and 6 Å) multilayers with perpendicular anisotropy by magneto-optical pump-probe measurements in the polar geometry. Time-resolved measurements made in the saturated state showed that maximum demagnetization was achieved within 300 fs. Hysteresis loops were measured at a time delay of 1.3 ps for temperatures from 20 to 300 °C. The Curie temperature was found to increase from 150 to 250 °C with increasing Co25Ni75 thickness. By comparing the loops obtained with and without pump excitation, the increase in electron temperature due to the pump was estimated to be about 60 K.en_GB
dc.identifier.citationVol. 97 (10), article 10A705en_GB
dc.identifier.doi10.1063/1.1847991en_GB
dc.identifier.urihttp://hdl.handle.net/10036/4172en_GB
dc.language.isoenen_GB
dc.publisherAmerican Institute of Physicsen_GB
dc.relation.urlhttp://dx.doi.org/10.1063/1.1847991en_GB
dc.subjectcobalt alloysen_GB
dc.subjectnickel alloysen_GB
dc.subjectplatinumen_GB
dc.subjectsiliconen_GB
dc.subjectferromagnetic materialsen_GB
dc.subjectelemental semiconductorsen_GB
dc.subjectmagnetic multilayersen_GB
dc.subjectdemagnetisationen_GB
dc.subjectperpendicular magnetic anisotropyen_GB
dc.subjectmagneto-optical effectsen_GB
dc.subjectmagnetic hysteresisen_GB
dc.subjectCurie temperatureen_GB
dc.titleUltrafast demagnetization of Co 25Ni 75/Pt multilayers with perpendicular anisotropy at elevated temperaturesen_GB
dc.typeArticleen_GB
dc.date.available2013-01-18T10:20:59Zen_GB
dc.date.available2013-03-20T13:12:19Z
dc.identifier.issn0021-8979en_GB
dc.descriptionCopyright © 2005 American Institute of Physicsen_GB
dc.identifier.eissn1089-7550en_GB
dc.identifier.journalJournal of Applied Physicsen_GB


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