Buchenau U, Zorn R, Ramos M A
Jülich Center for Neutron Science, Forschungszentrum Jülich Postfach 1913, D-52425 Jülich, Federal Republic of Germany.
Laboratorio de Bajas Temperaturas, Departamento de Fisica de la Materia Condensada, Condensed Matter Physics Center (IFIMAC) and Instituto Nicolas Cabrera, Universidad Autonoma de Madrid, Cantoblanco, E-28049 Madrid, Spain.
Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Oct;90(4):042312. doi: 10.1103/PhysRevE.90.042312. Epub 2014 Oct 21.
Literature data for picosecond mean square displacements show that the anharmonicity explains only about half of the fragility (with different fractions for different glass formers). The other half must be ascribed to the Adam-Gibbs mechanism of a growing cooperatively rearranging region. One can measure both influences separately by a simultaneous measurement of liquid and crystal in the coexistence region.
皮秒均方位移的文献数据表明，非谐性仅解释了约一半的脆性（不同玻璃形成体的比例不同）。另一半必须归因于协同重排区域增长的亚当 - 吉布斯机制。人们可以通过同时测量共存区域中的液体和晶体来分别测量这两种影响。
