Reproducibility of dynamical heterogeneities and metabasin dynamics in glass forming liquids: The influence of structure on dynamics

被引：43

作者：

Appignanesi, GA ^{[1
]}

Fris, JAR ^{[1
]}

Frechero, MA ^{[1
]}

机构：

[1] Univ Nacl Sur, Dept Quim, Lab Fisicoquim, RA-8000 Bahia Blanca, Buenos Aires, Argentina

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.96.237803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The discovery that the propensity for particle motion in a supercooled liquid is completely determined by the initial structure pointed to the existence of a causal link between structure and dynamics in glassy systems. Here we demonstrate that this underlying influence of structure is only local in time, fading out beyond the metabasin lifetime much before the alpha relaxation time. Thus, our results reveal the irreproducibility of metabasin dynamics and support the scenario of a random walk on metabasins for the long time diffusion.

引用

页数：4

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