Photoluminescent Thermometer Based on a Phase-Transition Lanthanide Silicate with Unusual Structural Disorder

The hydrothermal synthesis of the novel Na[LnSiO(4)] (Ln = Gd, Eu, Tb) disordered orthorhombic system is reported. At 100 K, and above, these materials are best described in the centrosymmetric orthorhombic Pnma space group. At lower temperatures (structure solved at 30 K) the unit cell changes to b...

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Detalhes bibliográficos
Autor principal: Ananias, Duarte (author)
Outros Autores: Almeida Paz, Filipe A. (author), Yufit, Dmitry S. (author), Carlos, Luis D. (author), Rocha, Joao (author)
Formato: article
Idioma:eng
Publicado em: 1000
Assuntos:
Texto completo:http://hdl.handle.net/10773/19319
País:Portugal
Oai:oai:ria.ua.pt:10773/19319