Low-temperature phase transitions in LiKSO4: a neutron study

Bhakay-Tamhane, Sandhya ; Sequeira, A. ; Chidambaram, R. (1985) Low-temperature phase transitions in LiKSO4: a neutron study Solid State Communications, 53 (2). pp. 197-200. ISSN 0038-1098

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0038-1098(85)90125-5


A single crystal neutron diffraction study of the low temperature structural phase transitions in LiKSO4 has been carried out. Detailed temperature dependence of the Bragg peak profiles and integrated intensities for a group of about 20 reflections has been investigated upon cooling and heating in the temperature range 300 K to 96 K. The crystal undergoes three clear phase transitions at 205 K (from sp. gr. P63 to sp. gr. P31c), at 189 K and at about 135 K on cooling. The corresponding temperatures are 250 K, 190 K and 138 K on the heating cycle. These transitions are extremely sluggish, the kinetics depending on the thermal treatment of the crystal.

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Deposited On:08 Mar 2012 11:28
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