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| Título: | Crystal structure refinement of the layered copper-titanium perovskites Ln2Ba2Cu2Ti2O11 (Ln = La, Nd) from neutron powder diffraction data |
Autor: | Gómez-Romero, P. CSIC ORCID ; Palacín, M. Rosa CSIC ORCID ; Rodríguez-Carvajal, Juan | Fecha de publicación: | 1994 | Editor: | American Chemical Society | Citación: | Chemistry of Materials 6(11): 2118-2122 (1994) | Resumen: | Neutron powder diffraction data of the oxides Ln2Ba2Cu2Ti2O11 (Ln = La, Nd) are presented and analyzed by means of Rietveld profile refinements. These data confirm the existence, in both cases, of a tetragonal superstructure based on a quadruple perovskite (ap x ap x 4ap). Whereas the Nd derivative presents complete long range order of Cu/Ti, Ln/Ba, and oxygen vacancies, in the lanthanum derivative this order is only partial. | URI: | http://hdl.handle.net/10261/129816 | DOI: | 10.1021/cm00047a036 | Identificadores: | doi: 10.1021/cm00047a036 issn: 0897-4756 e-issn: 1520-5002 |
| Aparece en las colecciones: | (ICMAB) Artículos |
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| accesoRestringido.pdf | 15,38 kB | Adobe PDF |  Visualizar/Abrir |
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