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Título: | The 0.96(Bi0.5Na0.5)TiO3 - 0.04BaTiO3 crystal structure: A high-Q, high-counting statistics synchrotron diffraction analysis |
Autor: | Fuentes-Cobas, Luis; Pardo, Lorena CSIC ORCID; García, Álvaro CSIC; Brebøl, Klaus; Mercadelli, Elisa; Galassi, Carmen | Palabras clave: | High-resolution diffraction Rietveld analysis Lead-free piezoelectrics Sodium-bismuth-barium titanate |
Fecha de publicación: | 2014 | Editor: | Wiley-VCH | Citación: | Crystal Research and Technology 49(2-3): 190-194 (2014) | Resumen: | A synchrotron powder diffraction experiment, especially designed to shed light on the controversial problem of the crystal structure of 0.96(Bi0.5Na0.5)TiO3 - 0.04BaTiO3, is reported. The investigated material is a key component of the current international search for lead-free ferropiezoelectrics. A wide angular range diffraction pattern was measured in high resolution configuration, with emphasis on trustable counting stastistics in the high-Q interval. Cc and R3c structural models were tried as primary phases. The obtained experimental results are incompatible with the monoclinic model and clearly favor the rhombohedral symmetry. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | URI: | http://hdl.handle.net/10261/99034 | DOI: | 10.1002/crat.201300433 | Identificadores: | doi: 10.1002/crat.201300433 e-issn: 1521-4079 issn: 0232-1300 |
Aparece en las colecciones: | (ICMM) Artículos |
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