Cage effect, local anisotropies, and dynamic heterogeneities at the glass transition: A computer study of hard spheres
Cage effect, local anisotropies, and dynamic heterogeneities at the glass transition: A computer study of hard spheres
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DOI：
10.1103/physrevlett.80.4915
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发表时间：
1998-06-01
影响因子：
8.6
通讯作者：
Heuer, A
中科院分区：
文献类型：
--
作者：
Doliwa, B;Heuer, A
给出了一个接近玻璃化转变的硬球系统的计算机模拟。从三时间相关性中，我们获得了所有相关时间尺度上的单粒子动力学信息，包括动态异质性的存在。得到了β区笼效应的详细图像，得到了有关有效笼的形状、大小和弛豫特性的信息。明显的各向异性动力学主要在β区观察到。
Computer simulations of a hard sphere system close to the glass transition are presented. From three-time correlations, we obtain information about the Single-particle dynamics on all relevant time scales, including the presence of dynamic heterogeneities. A detailed picture of the cage effect in the beta regime is obtained, yielding information about shape, size, and relaxation properties of the effective cage. Pronounced anisotropic dynamics is mainly observed in the beta regime.