1. Repositório Institucional da UFMG
  2. Publicações Científicas e Culturais
  3. Artigo de Periódico
Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/61459
Full metadata record
DC FieldValueLanguage
dc.creatorRoberto Luiz Moreirapt_BR
dc.creatorAnderson Diaspt_BR
dc.date.accessioned2023-11-28T17:54:27Z-
dc.date.available2023-11-28T17:54:27Z-
dc.date.issued2019-
dc.citation.volume118pt_BR
dc.citation.spage110513pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.materresbull.2019.110513pt_BR
dc.identifier.issn0025-5408pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/61459-
dc.description.resumoIntra-grain infrared spectroscopy was carried out on a domain-engineered ceramic with abnormally large grains. The model system used was a polycrystalline Zn2GeO4 ceramic sample, with a rhombohedral crystal structure and giant grain microstructure (50–350 μm). The micro-infrared spectra unveiled preferential crystal orientations for the different grains. Polarized spectra revealed well-defined crystallographic domains inside the ceramic grains. Appropriate crystallographic planes for full assignment of the infrared modes were found by polarized infrared light. This allowed the first realization of a polarization-resolved symmetry assignment of an as-grown ceramic material. A sound description of the polar phonon features of rhombohedral Zn2GeO4 is then presented. Also, an infrared spectroscopic mapping of the crystallographic domains inside the ceramic grains is demonstrated.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofMaterials Research Bulletinpt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectCeramicspt_BR
dc.subjectLattice dynamicspt_BR
dc.subjectMicrostructurept_BR
dc.subjectInfrared spectroscopypt_BR
dc.subjectDielectric propertiespt_BR
dc.subject.otherMaterial cerâmicopt_BR
dc.subject.otherDifusão em sólidospt_BR
dc.subject.otherMicroestruturapt_BR
dc.subject.otherEspectroscopia de infravermelhopt_BR
dc.subject.otherSemicondutorespt_BR
dc.subject.otherSemicondutores policristalinospt_BR
dc.titleIntra-grain polarized infrared spectroscopy realized in domain-engineered Zn2GeO4 ceramicspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0025540819306816pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6820-0269pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7413-1087pt_BR
Appears in Collections:Artigo de Periódico

Files in This Item:
There are no files associated with this item.
Show simple item record


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.