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Temperature-dependent Raman scattering spectra of CsBi(MoO4)2

✍ Scribed by M. Maczka; S. Kojima; J. Hanuza


Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
225 KB
Volume
61
Category
Article
ISSN
0022-3697

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✦ Synopsis


Successive phase transitions in CsBi(MoO 4 ) 2 at 125 and 325 K have been studied by Raman spectroscopy. The changes in the crystal structure, induced by the low-temperature first-order transition, have been discussed. The found anomalous shifts of some internal modes towards lower frequency with decreasing temperature have been explained as a result of strengthening of double or single oxygen bridges. The present results also provide information on the origin of the unknown phase, identified recently in CsDy(MoO 4 ) 2 .


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