Cooling-rate dependence of the shear modulus of amorphous solids
Cooling-rate dependence of the shear modulus of amorphous solids
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DOI：
10.1103/physreve.87.042310
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发表时间：
2013-04-22
影响因子：
2.4
通讯作者：
Procaccia, Itamar
中科院分区：
文献类型：
--
作者：
Ashwin, J.;Bouchbinder, Eran;Procaccia, Itamar
Rapidly cooling a liquid may result in a glass transition, creating an amorphous solid whose shear and bulk moduli are finite. Even when done with constant density, these resulting moduli depend strongly on the rate of cooling. Understanding this phenomenon calls for analyzing separately the "Born term" that exists also in perfectly ordered materials and the contributions of the "excess modes" that result from glassy disorder. We show that the Born term is very insensitive to the cooling rate, and all the variation in the shear modulus is due to the excess modes. We argue that this approach provides a quantitative understanding of the cooling rate dependence of a basic linear response coefficient, i.e., the shear modulus. DOI: 10.1103/PhysRevE.87.042310
