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Incommensurate-commensurate phase transition in ferroelastic CsIO4

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
70
Issue
9
Identifiers
DOI: 10.1016/0038-1098(89)90284-6

Abstract

Abstract Raman scattering experiments have been performed on ferroelastic CsIO 4 over the temperature range 323K to 200K during cooling and heating cycles. The spectra display marked changes at 256K and 244K during the cooling cycle and at 287K and 291K during the heating cycle. The transition at 256K is suggested to be from normal to incommensurate phase which changes over to a commensurate structure at 244K.

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