Glassiness in a Model without Energy Barriers.
Glassiness in a Model without Energy Barriers.
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无能量势垒模型中的玻璃态。
DOI：
10.1103/physrevlett.75.1190
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发表时间：
1995
影响因子：
8.6
通讯作者：
F. Ritort
中科院分区：
文献类型：
--
作者：
F. Ritort
我们提出了一个微观模型，没有能量障碍，以解释在结构玻璃中观察到的一些通用功能。静力学可以精确地求解，而动力学已澄清使用蒙特卡洛计算。虽然该模型没有热力学转变，但它捕捉了真实的玻璃的一些基本特征，即，极慢的弛豫、依赖于时间的滞后效应、弛豫时间的异常增加和老化。这表明熵垒效应可能是解释在真实的玻璃中观察到的行为的重要因素。
We propose a microscopic model without energy barriers in order to explain some generic features observed in structural glasses. The statics can be exactly solved while the dynamics has been clarified using Monte Carlo calculations. Although the model has no thermodynamic transition, it captures some of the essential features of real glasses, i.e., extremely slow relaxation, time dependent hysteresis effects, anomalous increase of the relaxation time, and aging. This suggests that the effect of entropy barriers can be an important ingredient to account for the behavior observed in real glasses.