The observation of the longitudinal wave velocity in a model supercooled liquid

T. Muranaka, Jun Matsui, Y. Hiwatari

研究成果: ジャーナルへの寄稿記事

抄録

We have improved the non-equilibrium molecular dynamics measurement for the longitudinal wave (LW) velocity (the speed of sound) and have applied it to a model system in 2D and 3D. The LW velocity at temperature of the glass or supercooled liquid state reaches the range of in the 2D system and in the 3D system, with a gradual increase with increasing temperature under the isochoric and adiabatic conditions. In our previous paper [4] we analysed that the cooperative motion in intermediate time and length scales propagates with a speed depending on temperature and found that its dependency is opposed to that of the LWs. It suggests that the cooperative motion spreads over the system in a different way of sound.

元の言語英語
ページ(範囲)822-826
ページ数5
ジャーナルMolecular Simulation
41
発行部数10-12
DOI
出版物ステータス出版済み - 1 1 2015

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Supercooled Liquid
longitudinal waves
Liquids
liquids
Non-equilibrium Molecular Dynamics
2-D Systems
Motion
Acoustic wave velocity
adiabatic conditions
Length Scale
Temperature
acoustics
Molecular dynamics
Time Scales
Acoustic waves
Model
temperature
Glass
molecular dynamics
Range of data

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Modelling and Simulation
  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Information Systems

これを引用

The observation of the longitudinal wave velocity in a model supercooled liquid. / Muranaka, T.; Matsui, Jun; Hiwatari, Y.

:: Molecular Simulation, 巻 41, 番号 10-12, 01.01.2015, p. 822-826.

研究成果: ジャーナルへの寄稿記事

Muranaka, T. ; Matsui, Jun ; Hiwatari, Y. / The observation of the longitudinal wave velocity in a model supercooled liquid. :: Molecular Simulation. 2015 ; 巻 41, 番号 10-12. pp. 822-826.
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