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Vibrational Study of Phase Transitions in KIn(WO4)2

✍ Scribed by M. Mączka; J. Hanuza; S. Kojima; J.H. van der Maas

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
344 KB
Volume
158
Category
Article
ISSN
0022-4596

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✦ Synopsis

Studies of the low-temperature D 16 2h orthorhombic phase and investigation of trigonal+monoclinic phase transition in quenched high-temperature phase KIn(WO 4 ) 2 were performed by means of infrared and Raman spectroscopy. The observed vibrational modes were assigned to the vibrations of respective atoms in the unit cells. It has been shown that as a result of the trigonal+monoclinic phase transition a similar temperature dependence of vibrational modes has been observed as that found for KSc(WO 4 ) 2 although crystallographic studies suggest that the former crystal has D 4 3d and the later D 3 3d structure.

2001

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