Silver niobium trioxide, AgNbO3

The present structure determination of silver niobium trioxide at 291 K was performed on a twinned single crystal with a predominant presence [about 93 (1)%] of one twin domain. The sample contained traces of V (about 1 atomic %). This study confirms that the room‐temperature phase of AgNbO3 is isos...

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Veröffentlicht in:	Acta crystallographica. Section C, Crystal structure communications Crystal structure communications, 2000-08, Vol.56 (8), p.916-918
Hauptverfasser:	Fábry, Jan, Zikmund, Zdeněk, Kania, Antoni, Petříček, Václav
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Inorganic compounds Physics Structure of solids and liquids crystallography Structure of specific crystalline solids Water, oxides, hydroxides, peroxides
Online-Zugang:	Volltext
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Zusammenfassung:	The present structure determination of silver niobium trioxide at 291 K was performed on a twinned single crystal with a predominant presence [about 93 (1)%] of one twin domain. The sample contained traces of V (about 1 atomic %). This study confirms that the room‐temperature phase of AgNbO3 is isostructural with the room‐temperature phase of NaNbO3, i.e. it is a tilted perovskite. Structural deviation in AgNbO3 from centrosymmetry was not detected in this study and its structure was refined in Pbcm, though a previous study indicated ferroelectricity below 350 K, in contrast with NaNbO3.
ISSN:	0108-2701 1600-5759
DOI:	10.1107/S0108270100006806