Lowest frequency mode in Raman susceptibility: 2-propanol from ambient to supercritical condition
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We report the first observation of the low-frequency Raman spectra of 2-propanol from ambient to supercritical condition. Phenomenological analysis is applied to the reduced Raman spectra. The low-frequency component is decomposed into two components: the lowest mode represented by a MRT(multiple random telegraph) model and the 2nd mode represented by a modified Gaussian. Only the characteristic time of the lowest mode sensitively depends on density and decreases with increasing density. The integrated intensity of each mode is proportional to the density.
KeywordsSolid State and Materials
Author contribution statement
All the authors were involved in the preparation of the manuscript. All the authors have read and approved the final manuscript.
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