Molecular dynamics simulation of the fragile glass former ortho-terphenyl: a flexible molecule model. II. Collective dynamics

Abstract

We present a molecular dynamics study of the collective dynamics of a flexible model for the fragile glass-former orthoterphenyl [ S. Mossa, R. Di leonardo, G. Ruocco, and M. Sampoli, Phys. Rev. E 62, 612 (2000)]. We study the behavior of the coherent scattering functions, considering the density fluctuations of both molecular and phenyl rings centers of mass; moreover we directly simulate the neutron scattering spectra taking into account both the contributions due to the carbon and hydrogens atoms. We compare our results with the main predictions of the Mode Coupling Theory and with the available coherent neutron scattering experimental data.

13 pages, 15 eps figures

References in corpus (1)

• Dynamics in a supercooled molecular liquid: Theory and Simulations

Cited by in corpus (9)

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• Analogy of the slow dynamics between the supercooled liquid and the supercooled plastic crystal states of difluorotetrachloroethane
• Molecular dynamics simulation study of the high frequency sound waves in the fragile glass former ortho-terphenyl
• Orientational and induced contributions to the depolarized Rayleigh spectra of liquid and supercooled ortho-terphenyl
• Vibrational origin of the fast relaxation processes in molecular glass-formers
• Statistical Mechanics of Glass Formation in Molecular Liquids with OTP as an Example