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(Ca(x)Nd(11-x))Ru(4)O(24) (x = 4.175)

Single crystals of the title compound, calcium neodymium ruthenate, (Ca(x)Nd(11-x))Ru(4)O(24) (x = 4.175), have been grown by the flux method. The structure consists of two crystallographically independent RuO(6) octa­hedra, which are isolated from each other and embedded in a matrix composed of the...

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Detalles Bibliográficos
Autores principales: Sakakura, Terutoshi, Okada, Keita, Iguchi, Hironaga, Wang, Jun, Ishizawa, Nobuo
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3011423/
https://www.ncbi.nlm.nih.gov/pubmed/21589203
http://dx.doi.org/10.1107/S1600536810046593
Descripción
Sumario:Single crystals of the title compound, calcium neodymium ruthenate, (Ca(x)Nd(11-x))Ru(4)O(24) (x = 4.175), have been grown by the flux method. The structure consists of two crystallographically independent RuO(6) octa­hedra, which are isolated from each other and embedded in a matrix composed of the Ca and Nd atoms. There are seven M sites which accommodate the Ca and Nd atoms with different populations. Four M sites at general positions are enriched with Nd, whereas the remaining three M sites on twofold rotation axes are enriched with Ca. The coordination numbers of O atoms to the M sites range from 6 to 9. The mean oxidation state of Ru was estimated at +4.79 from the composition analysis. The title compound is non-centrosymmetric and potentially multiferroic.