The study of the dynamical heterogeneity in the β-relaxation time regime: The two-dimensional molecular dynamics simulation with soft-sphere particles

Tadashi Muranaka, Jun Matsui, Yasuaki Hiwatari

研究成果: Contribution to journalArticle

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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 CMi (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.

元の言語英語
ページ(範囲)133-140
ページ数8
ジャーナルProgress of Theoretical Physics Supplement
発行部数178
DOI
出版物ステータス出版済み - 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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