Publication:
Low-field magnetoresistance in La0.7Sr0.3MnO3/Ta2O5 composites

dc.contributor.author Yang, Xihua en_US
dc.contributor.author Yang, Yaohua en_US
dc.contributor.author He, W en_US
dc.contributor.author Cheng, Ching-Jung en_US
dc.contributor.author Zhao, Yong en_US
dc.date.accessioned 2021-11-25T12:49:40Z
dc.date.available 2021-11-25T12:49:40Z
dc.date.issued 2008 en_US
dc.description.abstract Two-phase composites La0.7Sr0.3MnO3/Ta2O5 are synthesized and their magnetization and low-field magnetoresistance (LFMR) characteristics are investigated. It is found that a small amount of Ta ions enter into LSMO grains near the grain surface region, resulting in the reduction of the cell volume, and consequently, an extra reduction of the saturate magnetization. The paramagnetism-to-ferromagnetism transition temperature, TC, does not show significant change. The LFMR enhancement is observed over a wide range of temperature from 50 to 350K when the second phase material (Ta2O5) is introduced. The magnetic disorder caused by the secondary phase at grain boundaries and the Ta doping effect on the surface of LSMO grains are believed to contribute to the enhanced MR. en_US
dc.identifier.issn 0022-3727 en_US
dc.identifier.uri http://hdl.handle.net/1959.4/38191
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/3.0/au/ en_US
dc.source Legacy MARC en_US
dc.title Low-field magnetoresistance in La0.7Sr0.3MnO3/Ta2O5 composites en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.accessRights.uri http://purl.org/coar/access_right/c_14cb
unsw.description.notePublic The Journal of Physics D is published by Institute of Physics Publishing Ltd, http://www.iop.org/ en_US
unsw.description.publisherStatement © 2008 IOP Publishing Ltd en_US
unsw.identifier.doiPublisher http://dx.doi.org/10.1088/0022-3727/41/11/115009 en_US
unsw.relation.faculty Science
unsw.relation.faculty Engineering
unsw.relation.ispartofissue 11 en_US
unsw.relation.ispartofjournal Journal of Physics D - Applied Physics en_US
unsw.relation.ispartofvolume 41 en_US
unsw.relation.originalPublicationAffiliation Yang, Xihua, Biological, Earth & Environmental Sciences, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Yang, Yaohua, Computer Science & Engineering, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation He, W en_US
unsw.relation.originalPublicationAffiliation Cheng, Ching-Jung, Materials Science & Engineering, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Zhao, Yong, Materials Science & Engineering, Faculty of Science, UNSW en_US
unsw.relation.school School of Biological, Earth & Environmental Sciences *
unsw.relation.school School of Computer Science and Engineering *
unsw.relation.school School of Materials Science & Engineering *
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