Temperature Evolution of the Crystal Structure of AgNbO3 |
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| Authors: | A. Ratuszna J. Pawluk A. Kania |
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| Affiliation: | Institute of Physics , University of Silesia , Uniwersytecka 4, Katowice, Poland |
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| Abstract: | X-ray powder diffraction patterns of the AgNbO3 have been obtained in a wide temperature range: from room temperature up to 850 K. The type of distortion and the multiplicity of the pseudo-cubic perovskite cell has been determined from the splitting of the main diffraction lines and from analysis of the superlattice peaks. The scheme of oxygen octahedra tilting and the sequence of the distorted pseudocubic cell is: |
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| Keywords: | Agnbo3 Perovskite Crystals Structural Phase Transitions X-ray Powder Diffraction |
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