Communication: Linking the dielectric Debye process in mono-alcohols to density fluctuations

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Abstract

This work provides the first direct evidence that the puzzling dielectric Debye process observed in mono-alcohols is coupled to density fluctuations. The results open up for an explanation of the Debye process within the framework of conventional liquid-statetheory. The spectral shape of the dynamical bulk modulus of the two studied mono-alcohols, 2-ethyl-1-hexanol and 4-methyl-3-heptanol, is nearly identical to that of their corresponding shear modulus, and thus the supramolecular structures believed to be responsible for the slow dielectric Debye process are manifested in the bulk modulusin the same way as in the shear modulus
Original languageEnglish
Article number1611031
JournalThe Journal of Chemical Physics
Volume144
Issue number16
Number of pages4
ISSN0021-9606
DOIs
Publication statusPublished - Apr 2016

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