Nature of the non-exponential primary relaxation in structural glass-formers probed by dynamically selective experiments

R. Böhmer, Ralph Chamberlin, G. Diezemann, B. Geil, A. Heuer, G. Hinze, S. C. Kuebler, Ranko Richert, B. Schiener, H. Sillescu, H. W. Spiess, U. Tracht, M. Wilhelm

Research output: Contribution to journalArticle

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Abstract

Several experimental methods feature the potential to distinguish between slow and fast contributions to the non-exponential, ensemble averaged primary response in glass-forming materials. Some of these techniques are based on the selection of subensembles using multi-dimensional nuclear magnetic resonance, optical bleaching, and non-resonant spectral hole burning. Others, such as the time-dependent solvation spectroscopy, measure microscopic responses induced by local perturbations. Using several of these methods it could be demonstrated for various glass-forming materials that the non-exponential relaxation results from a superposition of dynamically distinguishable entities. The experimental observation that subensembles can be selected efficiently indicates a large degree of heterogeneity. The intrinsic response is compatible with single exponential relaxation.

Original languageEnglish (US)
Pages (from-to)1-9
Number of pages9
JournalJournal of Non-Crystalline Solids
Volume235-237
StatePublished - Aug 2 1998

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Glass
glass
Solvation
Bleaching
Experiments
Nuclear magnetic resonance
hole burning
Spectroscopy
bleaching
solvation
perturbation
nuclear magnetic resonance
spectroscopy

ASJC Scopus subject areas

  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials

Cite this

Nature of the non-exponential primary relaxation in structural glass-formers probed by dynamically selective experiments. / Böhmer, R.; Chamberlin, Ralph; Diezemann, G.; Geil, B.; Heuer, A.; Hinze, G.; Kuebler, S. C.; Richert, Ranko; Schiener, B.; Sillescu, H.; Spiess, H. W.; Tracht, U.; Wilhelm, M.

In: Journal of Non-Crystalline Solids, Vol. 235-237, 02.08.1998, p. 1-9.

Research output: Contribution to journalArticle

Böhmer, R, Chamberlin, R, Diezemann, G, Geil, B, Heuer, A, Hinze, G, Kuebler, SC, Richert, R, Schiener, B, Sillescu, H, Spiess, HW, Tracht, U & Wilhelm, M 1998, 'Nature of the non-exponential primary relaxation in structural glass-formers probed by dynamically selective experiments', Journal of Non-Crystalline Solids, vol. 235-237, pp. 1-9.
Böhmer, R. ; Chamberlin, Ralph ; Diezemann, G. ; Geil, B. ; Heuer, A. ; Hinze, G. ; Kuebler, S. C. ; Richert, Ranko ; Schiener, B. ; Sillescu, H. ; Spiess, H. W. ; Tracht, U. ; Wilhelm, M. / Nature of the non-exponential primary relaxation in structural glass-formers probed by dynamically selective experiments. In: Journal of Non-Crystalline Solids. 1998 ; Vol. 235-237. pp. 1-9.
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