title: Nuclear-magnetic-resonance measurements reveal the origin of the Debye process in monohydroxy alcohols.
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.
authors.affiliation: Fakultät für Physik, Technische Universität Dortmund, 44221 Dortmund, Germany. catalin.gainaru@tu-dortmund.de
authors.forename: C
authors.initials: C
authors.lastname: Gainaru
authors.forename: R
authors.initials: R
authors.lastname: Meier
authors.forename: S
authors.initials: S
authors.lastname: Schildmann
authors.forename: C
authors.initials: C
authors.lastname: Lederle
authors.forename: W
authors.initials: W
authors.lastname: Hiller
authors.forename: E A
authors.initials: EA
authors.lastname: Rössler
authors.forename: R
authors.initials: R
authors.lastname: Böhmer