Raman evidence of librational fluctuations in KNCS phase transition |
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Authors: | F.J. Owens |
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Affiliation: | Energetic Materials Laboratory, ARRADCOM, Dover, NJ 07801, U.S.A. |
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Abstract: | A marked divergence of the line width of the Raman spectra of the librational modes of the NCS- ion is observed in KNCS as the temperature is raised through the transition temperature. The effect is attributed to the onset of fluctuations of the orientation of the NCS- ion between two energetically equivalent positions. |
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