Nuclear-magnetic-resonance measurements reveal the origin of the debye process in monohydroxy alcohols

C. Gainaru, R. Meier, S. Schildmann, C. Lederle, W. Hiller, E. A. Rössler, R. Böhmer

Research output: Contribution to journalArticlepeer-review

160 Scopus citations

Abstract

Monohydroxy alcohols show a structural relaxation and at longer time scales a Debye-type dielectric peak. From spin-lattice relaxation experiments using different nuclear probes, an intermediate, slower-than-structural dynamics is identified for n-butanol. Based on these findings and on translational diffusion measurements, a model of self-restructuring, transient chains is proposed. The model is demonstrated to explain consistently the so-far puzzling observations made for this class of hydrogen-bonded glass forming liquids.

Original languageEnglish
Article number258303
JournalPhysical Review Letters
Volume105
Issue number25
DOIs
StatePublished - Dec 16 2010
Externally publishedYes

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