The Study of the Dynamical Heterogeneity in the β-Relaxation Time Regime : The Two-Dimensional Molecular Dynamics Simulation with Soft-Sphere Particles(The 50th Anniversary of the Alder Transition -Recent Progress on Computational Statistical Physics-)
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概要
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We study the dynamical propensity of the β relaxation using the two-dimensional molecular dynamics simulation of the binary soft-sphere model. The correlative motion of particles and the dynamical heterogeneity in the β relaxation time regime is studied in detail with the correlation function CM_i(t), which has previously been introduced by us and found to be an effective measure of vector-like correlative motions of particles among surrounding particles. It is found that the correlation is enough long-lived and long-ranged to bring significant system-size dependence of the mean-squared displacements in the intermediate time region of our concern.
- 理論物理学刊行会の論文
- 2009-04-24
著者
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Matsui Jun
Kyushu Univ. Fukuoka Jpn
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HIWATARI Yasuaki
Graduate School of Natural Science and Technology, Kanazawa University
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Hiwatari Yasuaki
Toyota Physical & Chemical Res. Inst. Aichi Jpn
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Hiwatari Yasuaki
Toyota Physical & Chemical Research Institute
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Matsui Jun
Kyushu University
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MURANAKA Tadashi
Aichi Institute of Technology
関連論文
- Time Autocorrelation Function of Intramolecular Dipole Moments for Type-A Polymer Glass(Cross-disciplinary Physics and Related Areas of Science and Technology)
- The Study of the Dynamical Heterogeneity in the β-Relaxation Time Regime : The Two-Dimensional Molecular Dynamics Simulation with Soft-Sphere Particles(The 50th Anniversary of the Alder Transition -Recent Progress on Computational Statistical Physics-)