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High-Pressure Irreversible Amorphization of La<sub>1/3</sub>NbO<sub>3</sub>
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Journal of Modern Physics·Volume 02 (2011)·Pages 323–334·Published 17 May 2011·DOI10.4236/jmp.2011.25040
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Abstract
The crystallographic structure of La<sub>1/3</sub>NbO<sub>3</sub> perovskite was studied at high pressures using a diamond-anvil cell and synchrotron radiation. High-pressure energy dispersive (EDS) x-ray diffraction and high-pressure angle dispersive (ADS) x-ray diffraction revealed an irreversible amorphization at ~10 GPa. A large change in the bulk modulus accompanied the high-pressure amorphization.
KeywordsLa<sub>1/3</sub>NbO<sub>3</sub>High-PressureAmorphizationPerovskites
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