تقرير
Time evolution of dynamic propensity in a model glass former. The interplay between structure and dynamics
| العنوان: | Time evolution of dynamic propensity in a model glass former. The interplay between structure and dynamics |
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| المؤلفون: | Fris, J. A. Rodriguez, Alarcón, L. M., Appignanesi, G. A. |
| سنة النشر: | 2008 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Soft Condensed Matter, Condensed Matter - Statistical Mechanics |
| الوصف: | By means of the isoconfigurational method we calculate the change in the propensity for motion that the structure of a glass-forming system experiences during its relaxation dynamics. The relaxation of such a system has been demonstrated to evolve by means of rapid crossings between metabasins of its potential energy surface (a metabasin being a group of mutually similar, closely related structures which differ markedly from other metabasins), as collectively relaxing units (d-clusters) take place. We now show that the spatial distribution of propensity in the system does not change significantly until one of these d-clusters takes place. However, the occurrence of a d-cluster clearly de-correlates the propensity of the particles, thus ending up with the dynamical influence of the structural features proper of the local metabasin. We also show an important match between particles that participate in d-clusters and that which show high changes in their propensity. Comment: 7 pages, 8 figures, article |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/0810.1320 |
| رقم الأكسشن: | edsarx.0810.1320 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |