Lowest frequency mode in Raman susceptibility: 2-propanol from ambient to supercritical condition

Yuko Amo (), Takuya Hasegawa Sato, Yasuo Kameda and Takeshi Usuki
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Yuko Amo: Yamagata University 1-4-12 Kojirakawa-machi
Takuya Hasegawa Sato: Yamagata University 1-4-12 Kojirakawa-machi
Yasuo Kameda: Yamagata University 1-4-12 Kojirakawa-machi
Takeshi Usuki: Yamagata University 1-4-12 Kojirakawa-machi

The European Physical Journal B: Condensed Matter and Complex Systems, 2020, vol. 93, issue 1, 1-7

Abstract: 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. Graphical abstract

Keywords: Solid; State; and; Materials (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1140/epjb/e2019-100145-1

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