Synthesis, crystal growth and characterization of γ-Phase bismuth titanium oxide with gallium

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dc.creatorLobato, Arilson Reges
dc.creatorLanfredi, Silvania
dc.creatorCarvalho, Jesiel Freitas
dc.creatorHernandes, Antonio Carlos
dc.date.accessioned2018-07-10T12:09:03Z
dc.date.available2018-07-10T12:09:03Z
dc.date.issued2000
dc.description.abstractGallium solubility in the Bi12TiO20 (BTO) matrix was investigated by solid state reaction synthesis and Bi12Ti(1-x)GaxO20 (BTGaO) single crystals were grown by Top Seeded Solution Growth (TSSG). We determined that it is possible to obtain a continuous solid solution from (x)Bi12TiO20:(1-x)Bi12[Ga0.7Bi0.3]O20andthatGareplacesTiintheBTOmatrixgivingBi12Ti(1-x)Ga(x)O20 up to x < 0.2. BTGaO single crystals grown with an excess of Bi2O3 were transparent, a bleaching effect was observed due to the presence of gallium in the crystalline sillenite structure and their lattice parameter was higher than for pure BTO. The results for BTGaO single crystals showed an increase in the optical activity from ρ0 = 6.4° ± 0.3°/mm, for BTO, to ρ0 = 9.7° ± 0.3°/mm, for BTGaO grown with x = 0.30 in the melt. The BTGaO crystal presented an activation energy value of 0.48 ± 0.02 eV for 100 °C ≤ T ≤ 300 °C.pt_BR
dc.identifier.citationLOBATO, A. R.; LANFREDI, S.; CARVALHO, J. F.; HERNANDES, A C. Synthesis, crystal growth and characterization of gama-phase bismuth titanium oxide with gallium. Materials Research, São Carlos, v. 3, n. 3, p. 92-96, 2000.pt_BR
dc.identifier.doi10.1590/S1516-14392000000300008
dc.identifier.issne- 1980-5373
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/15374
dc.language.isoengpt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentInstituto de Física - IF (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectCrystal growthpt_BR
dc.subjectBismuth titanium oxidept_BR
dc.subjectOptical materialpt_BR
dc.titleSynthesis, crystal growth and characterization of γ-Phase bismuth titanium oxide with galliumpt_BR
dc.typeArtigopt_BR

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