Concentration dependence of the electric field gradient in PbZrsub(1-x)Tisub(x)Osub(3) ceramics
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2001
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INTERNATIONAL CONFERENCE ON HYPERFINE INTERACTIONS, 12th
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Resumo
The concentration dependence of the electric field gradient (EFG) in PZT ceramics was
studied by Time Differential Perturbed Angular Correlations (PAC) using the 181Ta radioactive probe
in samples with x = 0.3, 0.5 and 0.8 at room temperature. This phase presents two sites, probably
related to defects close to probes, caused by oxygen and lead vacancies. We can also state that both
the paraelectric and ferroelectric phases of these systems have two sites with different characteristics
and that the high-frequency quadrupolar frequency site presents the highest fraction. The concentration dependence revealed by our results is discussed by comparing the latter with previous PAC
studies.
Como referenciar
OLZON DIONYSIO, M.; SOUZA, S.D.; AYALA, A.P.; CARBONARI, A.W.; LONGO, E. Concentration dependence of the electric field gradient in PbZrsub(1-x)Tisub(x)Osub(3) ceramics. In: EVENSON, W. (ed.); JAEGER, H. (ed.); ZACATE, M.O. (ed.). In: INTERNATIONAL CONFERENCE ON HYPERFINE INTERACTIONS, 12th, Aug. 12-17, 2001, Park City, UT, USA. Proceedings... p. 523-528. Disponível em: http://repositorio.ipen.br/handle/123456789/16379. Acesso em: 20 Mar 2026.
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