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Article: Magnetoresistance in LaFe11.2Co0.7Si1.1 compound

TitleMagnetoresistance in LaFe11.2Co0.7Si1.1 compound
Authors
Issue Date2004
PublisherIEEE.
Citation
IEEE Transactions on Magnetics, 2004, v. 40 n. 4 pt 2, p. 2754-2756 How to Cite?
AbstractMagnetoresistance has been studied in LaFe/sub 11.2/Co/sub 0.7/Si/sub 1.1/ compound. The ferromagnetic ordering at Curie temperature T/sub C/ of 274 K was found being accompanied by a drastic negative lattice expansion due to the strong structural and magnetic interplay. Such a simultaneous magnetic and lattice change would cause changes in transport properties. The measured transport properties indicate that the transition can be induced by temperature or applied magnetic field. The sample shows a metallic character below T/sub C/, whereas the electrical resistance decreases dramatically and then recovers the metal-like behavior above T/sub C/. Application of a magnetic field retains the transitions via increasing the ferromagnetic ordering temperature. An isothermal increase of field leads to an increase of resistance at temperatures near but above T/sub C/, which is a result of the field-induced metamagnetic transition from paramagnetic to ferromagnetic state.
Persistent Identifierhttp://hdl.handle.net/10722/43426
ISSN
2014 Impact Factor: 1.386
2014 SCImago Journal Rankings: 0.775
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHu, FXen_HK
dc.contributor.authorGao, Jen_HK
dc.contributor.authorQian, XLen_HK
dc.contributor.authorLi, YXen_HK
dc.contributor.authorDu, Jen_HK
dc.contributor.authorSun, JRen_HK
dc.contributor.authorShen, BGen_HK
dc.date.accessioned2007-03-23T04:45:28Z-
dc.date.available2007-03-23T04:45:28Z-
dc.date.issued2004en_HK
dc.identifier.citationIEEE Transactions on Magnetics, 2004, v. 40 n. 4 pt 2, p. 2754-2756en_HK
dc.identifier.issn0018-9464en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43426-
dc.description.abstractMagnetoresistance has been studied in LaFe/sub 11.2/Co/sub 0.7/Si/sub 1.1/ compound. The ferromagnetic ordering at Curie temperature T/sub C/ of 274 K was found being accompanied by a drastic negative lattice expansion due to the strong structural and magnetic interplay. Such a simultaneous magnetic and lattice change would cause changes in transport properties. The measured transport properties indicate that the transition can be induced by temperature or applied magnetic field. The sample shows a metallic character below T/sub C/, whereas the electrical resistance decreases dramatically and then recovers the metal-like behavior above T/sub C/. Application of a magnetic field retains the transitions via increasing the ferromagnetic ordering temperature. An isothermal increase of field leads to an increase of resistance at temperatures near but above T/sub C/, which is a result of the field-induced metamagnetic transition from paramagnetic to ferromagnetic state.en_HK
dc.format.extent87157 bytes-
dc.format.extent30720 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.rights©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleMagnetoresistance in LaFe11.2Co0.7Si1.1 compounden_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0018-9464&volume=40&issue=4 pt 2&spage=2754&epage=2756&date=2004&atitle=Magnetoresistance+in+LaFe11.2Co0.7Si1.1+compounden_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/TMAG.2004.832500en_HK
dc.identifier.scopuseid_2-s2.0-4444376188-
dc.identifier.hkuros91989-
dc.identifier.isiWOS:000223446700249-

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