Abstract
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.
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Amo, Y., Sato, T.H., Kameda, Y. et al. Lowest frequency mode in Raman susceptibility: 2-propanol from ambient to supercritical condition. Eur. Phys. J. B 93, 6 (2020). https://doi.org/10.1140/epjb/e2019-100145-1
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DOI: https://doi.org/10.1140/epjb/e2019-100145-1