Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/504
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dc.contributorDepartment of Applied Physics-
dc.creatorWan, X-
dc.creatorChew, K-
dc.creatorChan, HLW-
dc.creatorChoy, CL-
dc.creatorZhao, X-
dc.creatorLuo, H-
dc.date.accessioned2014-12-11T08:27:59Z-
dc.date.available2014-12-11T08:27:59Z-
dc.identifier.issn0021-8979-
dc.identifier.urihttp://hdl.handle.net/10397/504-
dc.language.isoenen_US
dc.publisherAmerican Institute of Physicsen_US
dc.rights© 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in X. Wan et al. J. Appl. Phys. 97, 064105 (2005) and may be found at http://link.aip.org/link/?jap/97/064105en_US
dc.subjectLead compoundsen_US
dc.subjectFerroelectric materialsen_US
dc.subjectPyroelectricityen_US
dc.subjectPermittivityen_US
dc.subjectDielectric lossesen_US
dc.subjectImpurity distributionen_US
dc.subjectCrystal chemistryen_US
dc.titleThe effect of Fe substitution on pyroelectric properties of 0.62Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-0.38PbTiO₃ single crystalsen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage1-
dc.identifier.epage4-
dc.identifier.volume97-
dcterms.abstractFe-doped 0.62Pb(Mg[sub ⅓]Nb[sub ⅔]O₃-0.38PbTiO₃ (PMN-0.38PT) single crystals with two different dopant concentrations, 0.2 and 1.0 mol %, were grown by a modified Bridgman technique. The effect of Fe substitution on dielectric and pyroelectric properties was examined. The dielectric constant of the 0.2 mol % Fe-doped PMN-0.38PT single crystal was controlled successfully, indicating the possibility of tuning the dielectric properties by doping with a small concentration of iron ions. The mechanism of doping effect was also discussed based on the principles of crystal chemistry. The pyroelectric response of the single crystals was measured using a dynamic method from 20 to 50 °C. Compared with the 1.0 mol % Fe-doped single crystal, the 0.2 mol % Fe-doped sample possesses the better pyroelectric properties. At room temperature, the pyroelectric coefficient and detectivity figure of merit (F[sub D) for the 0.2 mol % Fe-doped sample are 568 µC/m² K and 53 µPa[sup −1/2], respectively, and they increase slightly with temperature increasing. These excellent pyroelectric properties as well as being able to produce large-size and high-quality single crystals make this kind of single crystal a promising candidate for high-performance infrared detectors and other pyroelectric applications.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationJournal of applied physics, 9 Mar. 2005, v. 97, 064105, p. 1-4-
dcterms.isPartOfJournal of applied physics-
dcterms.issued2005-03-09-
dc.identifier.isiWOS:000227767700060-
dc.identifier.scopus2-s2.0-20444439131-
dc.identifier.eissn1089-7550-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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