| 查看: 78 | 回复: 0 | |||
| 当前主题已经存档。 | |||
[交流]
求文献一篇
|
|||
|
α-relaxation near the glass transition L. Sjörgenc, a and W. Götzec, b a Institute of Theoretical Physics, Chalmers University of Technology, S-412 96, Göteborg, Sweden b Department of Physics, Technische Universität München, W-8046, Garching, Germany c Max-Planck-Institut für Physik und Astrophysik, W-800, Munich, Germany Available online 12 May 2003. This article is not included in your organization's subscription. However, you may be able to access this article under your organization's agreement with Elsevier. Abstract The general mode-coupling equations with activated processes included are analysed in the -relaxation region. This region is intimately connected with the β-relaxation region, where dynamics is completely ruled by generic properties of various bifurcation singularities inherent in the nonlinear equations of motion. In particular the von Schweidler relaxation, which describes the overlap region between the - and β-processes, plays a central role for the properties of the -relaxation function. This satisfies the time-temperature superposition principle with a master function which is well described by a Kohlrausch law. The -relaxation scale is proportional to the macroscopic viscosity, and for the temperature dependence one finds an algebraic increase above a critical temperature Tc, i.e. η∝(T−Tc)−γ. For lower temperatures, there is eventually a crossover to an Arrhenius law η∝ exp(E/kBT). |
回复此楼» 猜你喜欢
售SCI一区T0P文章，我:8.O.55.1.O54,科目全,可伽急
已经有3人回复
-
售SCI一区文章，我:8O5.5.1.O5.4,科目全,可伽急
已经有6人回复
-
售SCI一区T0P文章，我:8.O.55.1.O.54,科目齐全,可+急
已经有3人回复
-
售一区SCI文章T0P，我:8O.551.O54,科目全,可十急
已经有5人回复
-
售SCI一区文章，我:8O5.5.1.O5.4,科目全,可伽急
已经有6人回复
-
售SCI一区T0P文章，我:8O.55.1.O.5.4,科目齐全,可+急
已经有5人回复
-
售SCI一区T0P文章，我:8O.55.1.O.5.4,科目齐全,可+急
已经有4人回复
-
售SCI一区T0P文章，我:8.O.55.1.O54,科目全,可伽急
已经有7人回复
-
售SCI文章，我:8O.5.5.1O.54,科目全,可十急
已经有6人回复
-
售SCI-T0P文章，我:8O.5.5.1.O.54,科目齐全,可+急
已经有4人回复
