• 文献标题:   Structural relaxation time and dynamic shear modulus of glassy graphene
  • 文献类型:   Article
  • 作  者:   CUONG TD, PHAN AD, WAKABAYASHI K, HUY PT
  • 作者关键词:   glassy graphene, glass transition, structural relaxation time, dynamic shear modulu
  • 出版物名称:   JOURNAL OF NONCRYSTALLINE SOLIDS
  • ISSN:   0022-3093 EI 1873-4812
  • 通讯作者地址:   Phenikaa Univ
  • 被引频次:   1
  • DOI:   10.1016/j.jnoncrysol.2020.120024
  • 出版年:   2020

▎ 摘  要

We theoretically investigate glass transition behaviors of the glassy graphene in a wide range of temperature, where this amorphous graphene is described as a hard-sphere fluid. The dynamic arrest of a particle is assumingly caused by interactions with its nearest neighbors and surrounding fluid particles. The assumption allows us to analyze roles of local and collective particle mobility. We calculate the temperature dependence of structural relaxation time and dynamic shear modulus, the dynamic fragility, and the glass transition temperature. In addition, correlations between these physical quantities are comprehensively discussed. Our theoretical calculations agree quantitatively well with recent simulations and Dyre's shoving model.