Effect of La doping on the ferroic order in Pb-based perovskite-type relaxor ferroelectrics
dc.contributor | Virginia Tech | en |
dc.contributor.author | Maier, B. J. | en |
dc.contributor.author | Welsch, A. M. | en |
dc.contributor.author | Mihailova, B. | en |
dc.contributor.author | Angel, R. J. | en |
dc.contributor.author | Zhao, J. | en |
dc.contributor.author | Paulmann, C. | en |
dc.contributor.author | Engel, J. M. | en |
dc.contributor.author | Marshall, W. G. | en |
dc.contributor.author | Gospodinov, M. | en |
dc.contributor.author | Petrova, D. | en |
dc.contributor.author | Bismayer, U. | en |
dc.contributor.department | Geosciences | en |
dc.date.accessed | 2013-12-18 | en |
dc.date.accessioned | 2014-02-11T13:45:55Z | en |
dc.date.available | 2014-02-11T13:45:55Z | en |
dc.date.issued | 2011-04-07 | en |
dc.description.abstract | The structural alteration induced by the substitution of three-valent cations with an isotropic electronic outermost shell for Pb2+ in perovskite-type relaxors was investigated in the solid solutions Pb1-xLaxSc(1+x)/2Ta(1-x)/2O3, x = 0.08 (PST-La) and Pb1-xLaxSc(1+x)/2Nb(1-x)/2O3, x = 0.23 (PSN-La). In order to distinguish the "charge" effects from "strain" effects associated with the incorporation of La3+ in the structure, Sr-containing PbSc0.5Nb0.5O3 was characterized as well. The structure of the compounds was analyzed by in situ Raman spectroscopy, single-crystal x-ray diffraction, and powder neutron diffraction at different temperatures or pressures. It is shown that the embedding of La3+ strongly affects the ferroic structural species due to strain effects through a disturbance of the system of lone-pair electrons associated with Pb2+ and a decrease in the tolerance factor. La doping suppresses the dynamical coupling between off-centered Pb and B-site cations and enhances antiphase BO6 octahedral tilting which, depending on the level of doping, may lead to long-range order of antiphase BO6 tilts at ambient conditions and frustrated antiferroelectric order of Pb ions at low temperatures. | en |
dc.description.sponsorship | Deutsche Forschungsgemeinschaft MI 1127/2-2, INST 152/460-1, INST 152/526-1 | en |
dc.description.sponsorship | National Science Foundation EAR-0738692 | en |
dc.description.sponsorship | Bulgarian Ministry of Science and Education BY-X-308 | en |
dc.description.sponsorship | EU | en |
dc.format.mimetype | application/pdf | en |
dc.identifier.citation | Maier, B. J. ; Welsch, A. -M. ; Mihailova, B. ; et al., Apr 7, 2011. "Effect of La doping on the ferroic order in Pb-based perovskite-type relaxor ferroelectrics," PHYSICAL REVIEW B 83(13): 134106. DOI: 10.1103/PhysRevB.83.134106 | en |
dc.identifier.doi | https://doi.org/10.1103/PhysRevB.83.134106 | en |
dc.identifier.issn | 1098-0121 | en |
dc.identifier.uri | http://hdl.handle.net/10919/25369 | en |
dc.identifier.url | http://link.aps.org/doi/10.1103/PhysRevB.83.134106 | en |
dc.language.iso | en | en |
dc.publisher | American Physical Society | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject | high-pressure | en |
dc.subject | disorder | en |
dc.subject | Physics | en |
dc.title | Effect of La doping on the ferroic order in Pb-based perovskite-type relaxor ferroelectrics | en |
dc.title.serial | Physical Review B | en |
dc.type | Article - Refereed | en |
dc.type.dcmitype | Text | en |
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