Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/43506
DC FieldValueLanguage
dc.contributor.authorLin, K.W.en_US
dc.contributor.author林克偉zh_TW
dc.contributor.authorGuo, J.Y.en_US
dc.contributor.authorLiu, C.Y.en_US
dc.contributor.authorOuyang, H.en_US
dc.contributor.authorvan Lierop, J.en_US
dc.contributor.authorPhuoc, N.N.en_US
dc.contributor.authorSuzuki, T.en_US
dc.date2007zh_TW
dc.date.accessioned2014-06-06T08:10:59Z-
dc.date.available2014-06-06T08:10:59Z-
dc.identifier.issn0031-8965zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/43506-
dc.description.abstractIn this study, the structural and magnetic properties of exchange coupled nanocomposite FePt-FePt3 films were investigated. X-ray diffraction and transmission electron microscopy results showed that after rapid thermal annealing (600 degrees C for 6 minutes), a phase transformation from [Pt+Fe] into composite FePt-FePt3 phases was obtained. Annealing created an ordered FePt phase that resulted in a large room temperature coercivity (H-c similar to 3200 Oe) compared to the as-deposited film (H-c similar to 20 Oe). While no exchange bias field (H-c similar to 0 Oe) was measured at room temperature, the annealed sample showed significant H-ex similar to -500 Oe at lower temperatures (150 K <= T <= 250 250 K), indicative of exchange coupling between FePt and FePt3. The high blocking temperature (similar to 250 K) indicates FePt3 exhibits an enhanced Neel temperature. Further increasing the annealing temperature to 700 degrees C resulted in a reduction of Hex which is attributed to the transformation of FePt3 into the FePt phase at this higher annealing temperature. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en_US
dc.language.isoen_USzh_TW
dc.relationPhysica Status Solidi a-Applications and Materials Scienceen_US
dc.relation.ispartofseriesPhysica Status Solidi a-Applications and Materials Science, Volume 204, Issue 12, Page(s) 3991-3994.en_US
dc.relation.urihttp://dx.doi.org/10.1002/pssa.200777300en_US
dc.subjectoxide bilayersen_US
dc.subjectanisotropyen_US
dc.subjectbiasen_US
dc.titleExchange coupling in FePt-FePt3 nanocomposite filmsen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1002/pssa.200777300zh_TW
item.cerifentitytypePublications-
item.grantfulltextnone-
item.languageiso639-1en_US-
item.fulltextno fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeJournal Article-
Appears in Collections:材料科學與工程學系
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