Glass transition singularities and slow relaxation

T. Odagaki, Jun Matsui, Y. Hiwatari

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Generalized susceptibility for the binary soft-sphere mixtures is computed for the frequency range including both the α and β peaks in a supercooled fluid phase with a super-long-time molecular dynamics simulation. It is shown that the α peak has a non-Debye type frequency dependence and the β peak is essentially of a Debye-type. The slow dynamics is analyzed on the basis of the trapping diffusion model which takes account of two types of diffusive dynamics. With the use of the coherent medium approximation, the frequency dependence of dynamical quantities are shown to agree with the observation. The primary relaxation time is shown to exponentially diverge at a certain temperature below the glass transition point, in line with the Vogel-Fulcher equation. A unified view for the Vogel-Fulcher temperature, the glass transition temperature and the kinetic transition temperature is give on the basis of the trapping diffusion model.

Original languageEnglish
Pages (from-to)337-346
Number of pages10
JournalUnknown Journal
Volume367
Publication statusPublished - 1995

Fingerprint

Glass transition
glass
frequency dependence
Relaxation time
Superconducting transition temperature
trapping
Molecular dynamics
temperature
Temperature
Kinetics
Fluids
Computer simulation
kinetics
fluid
simulation
Glass transition temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

Cite this

Odagaki, T., Matsui, J., & Hiwatari, Y. (1995). Glass transition singularities and slow relaxation. Unknown Journal, 367, 337-346.

Glass transition singularities and slow relaxation. / Odagaki, T.; Matsui, Jun; Hiwatari, Y.

In: Unknown Journal, Vol. 367, 1995, p. 337-346.

Research output: Contribution to journalArticle

Odagaki, T, Matsui, J & Hiwatari, Y 1995, 'Glass transition singularities and slow relaxation', Unknown Journal, vol. 367, pp. 337-346.
Odagaki, T. ; Matsui, Jun ; Hiwatari, Y. / Glass transition singularities and slow relaxation. In: Unknown Journal. 1995 ; Vol. 367. pp. 337-346.
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