Comments on the alpha-peak shapes for relaxation in supercooled liquids

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1991
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Götze, Wolfgang
Hofacker, Ivo
Latz, Arnulf
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Journal of physics / Condensed Matter ; 3 (1991). - S. 5047-5071
Zusammenfassung
The alpha-peak master functions as obtained within the mode coupling theory for the supercooled liquid dynamics near the glass transition singularity are discussed. Double peak phenomena are found as a generic feature of the theory related to the self crossing of the transition hypersurface. They lead to two scenarios for liquid to glass transitions characterized by alpha'-alpha-peak pairs and by alpha-resonances accompanied by y-peaks. An efficient numerical procedure is developed for the so lution of the non-linear scaling equations for the master functions. A schematic three component model is used to fit quantitatively the dielectric loss spectra of polyvinylacetate, ortho-terphenyl, CaKNO3 and poly propylene glycol, which all deviate strongly from the Kohlrausch decay pattern. The model yields also triple resonances of alpha-gamma-delta-peaks.
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ISO 690FUCHS, Matthias, Wolfgang GÖTZE, Ivo HOFACKER, Arnulf LATZ, 1991. Comments on the alpha-peak shapes for relaxation in supercooled liquids. In: Journal of physics / Condensed Matter. 3, pp. 5047-5071. Available under: doi: 10.1088/0953-8984/3/26/022
BibTex
@article{Fuchs1991Comme-4916,
  year={1991},
  doi={10.1088/0953-8984/3/26/022},
  title={Comments on the alpha-peak shapes for relaxation in supercooled liquids},
  volume={3},
  journal={Journal of physics / Condensed Matter},
  pages={5047--5071},
  author={Fuchs, Matthias and Götze, Wolfgang and Hofacker, Ivo and Latz, Arnulf}
}
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