Silver niobium trioxide,AgNbO3 |
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| Authors: | Jan Fbry Zden k Zikmund Antoni Kania Vclav Pet&#x;í
ek |
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| Institution: | Jan Fábry,Zdeněk Zikmund,Antoni Kania,Václav Petříček |
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| Abstract: | 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. |
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