Asel Sartbaeva et al 2004 J. Phys.: Condens. Matter 16 5267 doi:10.1088/0953-8984/16/29/018
Asel Sartbaeva1, Simon A T Redfern1 and William T Lee1,2
Show affiliationsLi+ mobility and structural changes in the aluminosilicate beta-eucryptite have been studied by high-resolution powder neutron diffraction as a function of temperature from 573 to 873 K. A Li split-atom model was used to describe the disorder of Li+ ions in the structure. Analysis of the data shows two anomalies around 698 and 758 K. The first anomaly is attributed to an M-point zone boundary transition reported in the literature, which is connected to the appearance of the incommensurate structure. The second anomaly is attributed to a displacive phase transition of the framework and doubling in the a cell parameter.
Issue 29 (28 July 2004)
Received 29 March 2004
Published 9 July 2004
Asel Sartbaeva et al 2004 J. Phys.: Condens. Matter 16 5267
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