Crystal chemistry of vanadate pyroxenes: Crystal structure refinement, na anisotropy and rigid body analysis of the thermal vibration in ferroelectric NaVO3
- 1 July 1990
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 107 (1) , 219-224
- https://doi.org/10.1080/00150199008221541
Abstract
Crystal structure of NaVO3 has been refined at room temperature (ferroelectric phase) and 425°C (paraelectric phase) using X-ray diffraction data. The structural change during the ferroelectric phase transition is only a slight modification of the paraelectric phase. This is evident from the fact that X-ray data at room temperature can be refined to same accuracy either in space group Cc or C2/c. Analysis of rigid body thermal vibrations of [VO4] tetrahedra indicates considerable librational motion leading to a thermal correction of apparent V-O bond lengths as large as +.004 Å at RT and +0.009 Å at 425°C.Keywords
This publication has 10 references indexed in Scilit:
- Raman spectroscopic studies on sodium metavanadateJournal of Raman Spectroscopy, 1983
- Thermal expansion and phase transition in NaVO3Ferroelectrics, 1978
- Crystal structure of ferroelectric sodium meta vanadate, NaVO3Ferroelectrics, 1975
- A system of Fortran IV computer programs for crystal structure computationsPublished by National Institute of Standards and Technology (NIST) ,1975
- α-Form of sodium metavanadateActa Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 1974
- Dielectric Dispersion in NaVO3 Single CrystalJournal of the Physics Society Japan, 1974
- Crystal growth and properties of some alkali metal metavanadatesJournal of Crystal Growth, 1972
- Addition of higher cumulants to the crystallographic structure-factor equation: a generalized treatment for thermal-motion effectsActa Crystallographica Section A, 1969
- On the rigid-body motion of molecules in crystalsActa Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 1968
- On the Ferroelectric Behaviors of Sodium VanadateJournal of the Physics Society Japan, 1951