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arXiv · 1008.3370

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
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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 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.

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C. Gainaru, R. Meier, S. Schildmann, C. Lederle, W. Hiller, E. A. Rössler, R. Böhmer. 2010-08-19. Nuclear magnetic resonance measurements reveal the origin of the Debye process in monohydroxy alcohols. https://doi.org/10.1103/physrevlett.105.258303

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