Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15909
DC FieldValueLanguage
dc.contributorDepartment of Applied Physics-
dc.creatorYao, Y-
dc.creatorLiu, W-
dc.creatorChan, Y-
dc.creatorLeung, C-
dc.creatorMak, C-
dc.creatorPloss, B-
dc.date.accessioned2015-07-14T01:27:42Z-
dc.date.available2015-07-14T01:27:42Z-
dc.identifier.urihttp://hdl.handle.net/10397/15909-
dc.language.isoenen_US
dc.publisherWiley-Blackwellen_US
dc.titleStudies of Rare-earth-doped BiFeO 3 ceramicsen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage1246-
dc.identifier.epage1253-
dc.identifier.volume8-
dc.identifier.issue5-
dc.identifier.doi10.1111/j.1744-7402.2010.02577.x-
dcterms.abstractRare-earth (RE) (Eu 3+, Gd 3+, Tb 3+, and Dy 3+)-doped BiFeO 3 (BFO) ceramics were prepared by a modified solid-state reaction method, which adopted higher heating as well as cooling rates during sintering process. All the fabricated samples showed ferroelectric hysteresis loops with a remnant polarization of 21-35 μC/cm 2. A piezoelectric coefficient (d 33) of ∼48 pC/N was obtained and this value was showed to be composition independent. The pyroelectric properties of our samples were studied as a function of temperature. Generally, the pyroelectric coefficient slightly decreased with temperature, and this is attributed to the increase of electrical conduction at higher temperatures. Among the different doped BFO ceramics, Gd-doped samples exhibited the largest pyroelectric coefficient of 146 μC/m 2K at room temperature. For the magnetic properties, slim hysteresis loop with remnant magnetizations of 0.016-0.044 emu/g were obtained in all the doped samples. Our results revealed that the RE-doped BFO ceramics posses an improvement in both the electrical and magnetic properties. On the basis of our studies, we demonstrate that RE-doped BFO is a potential candidate for magnetoelectric device applications.-
dcterms.bibliographicCitationInternational journal of applied ceramic technology, 2011, v. 8, no. 5, p. 1246-1253-
dcterms.isPartOfInternational Journal of Applied Ceramic Technology-
dcterms.issued2011-
dc.identifier.isiWOS:000297249200030-
dc.identifier.scopus2-s2.0-80052671010-
dc.identifier.rosgroupidr51536-
dc.description.ros2010-2011 > Academic research: refereed > Publication in refereed journal-
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