Thermodynamics of glasses:: a first principles computation

被引:34
|
作者
Mézard, M
Parisi, G
机构
[1] Ecole Normale Super, Phys Theor Lab, F-75231 Paris 05, France
[2] Univ Rome La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[3] Univ Rome La Sapienza, Sez INFN, I-00185 Rome, Italy
关键词
D O I
10.1088/0953-8984/11/10A/011
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We propose a first principles computation of the thermodynamics of simple fragile glasses starting from the two-body interatomic potential. A replica formulation translates this problem into that of a gas of interacting molecules, each molecule being build of m atoms, and having a gyration radius (related to the cage size) which vanishes at zero temperature. We use a small cage expansion, valid at low temperatures, which allows us to compute the cage size, the specific heat (which follows the Dulong-Petit law) and the configurational entropy.
引用
收藏
页码:A157 / A165
页数:9
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