| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Configurational Entropy, Diffusivity and Potential Energy Landscape in Liquid Argon |
| DUAN Yong-Ping, MA Cong-Xiao, LI Jia-Yun, LI Cong, WANG Dan, LI Mei-Li, SUN Min-Hua |
| Heilongjiang Key Laboratory for Advanced Functional Materials and Excited State Process, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025 |
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| Cite this article: |
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DUAN Yong-Ping, MA Cong-Xiao, LI Jia-Yun et al 2009 Chin. Phys. Lett. 26 016402 |
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Abstract The configurational entropy, diffusion coefficient, dynamics and thermodynamics fragility indices of liquid argon are calculated using molecular dynamics simulations at two densities. The relationship between dynamics and thermodynamics properties is studied. The diffusion coefficient depends linearly on configurational entropy, which is consistent with the hypothesis of Adam-Gibbs. The consistence of dynamics and thermodynamics fragility indices demonstrates that dynamical behaviour is governed by thermodynamics behaviour in glass transition of liquid argon.
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| Keywords:
64.70.Kj
65.40.Gd
66.20.Gd
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Received: 30 May 2008
Published: 24 December 2008
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