玻璃临界点剪切模量的崩溃
无序系统与神经网络
2007-05-23 v3
摘要
玻璃临界点以热激发的局部结构重排——玻璃相的次级松弛——来描述。次级松弛之间的相互作用导致剪切模量的崩溃速度和程度远超无相互作用情况，从而产生了独立的原级过程的假象，而实际上这种原级过程并不存在。该模型提供了对玻璃临界点中两个难题特征——fragility 与拉伸性——的新视角。
引用
@article{arxiv.cond-mat/0202036,
title = {The breakdown of the shear modulus at the glass transition},
author = {U. Buchenau},
journal= {arXiv preprint arXiv:cond-mat/0202036},
year = {2007}
}
备注
4 pages, 5 figures, 13 references; version 2 changed in title, reduced claims and modified arguments according to referee criticque from PRL. One equation was omitted; otherwise equations are unchanged Paper rejected by PRL; Version 3 accepted as part of the proceedings Workshop Disordered Solids in Andalo 2003 to appear in Phil. Mag. B