Direct links between dynamical, thermodynamic and structural properties of liquids: modelling results

التفاصيل البيبلوغرافية
العنوان: Direct links between dynamical, thermodynamic and structural properties of liquids: modelling results
المؤلفون: Wang, L., Yang, C., Dove, M. T., Fomin, Yu. D., Brazhkin, V. V., Trachenko, K.
المصدر: Phys. Rev. E 95, 032116 (2017)
سنة النشر: 2017
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Soft Condensed Matter, Condensed Matter - Materials Science
الوصف: We develop an approach to liquid thermodynamics based on collective modes. We perform extensive molecular dynamics simulations of noble, molecular and metallic liquids and provide the direct evidence that liquid energy and specific heat are well-described by the temperature dependence of the Frenkel (hopping) frequency. The agreement between predicted and calculated thermodynamic properties is seen in the notably wide range of temperature spanning tens of thousands of Kelvin. The range includes both subcritical liquids and supercritical fluids. We discuss the structural crossover and inter-relationships between structure, dynamics and thermodynamics of liquids and supercritical fluids.
Comment: 10 pages, 6 figures
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevE.95.032116
URL الوصول: http://arxiv.org/abs/1702.07221
رقم الأكسشن: edsarx.1702.07221
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevE.95.032116