The Grüneisen Parameter of NaCl at High Pressures and Temperatures: a Molecular Dynamics Study
-
Abstract
The isotherms and Grüneisen parameters are calculated by using the molecular dynamics (MD) method with an improved Tosi--Fumi pair potential. The results show that the approximate power law dependence of the Grüneisen parameter on compression γ = γ 0 (V/V0)q, with q approximate 1.078, holds in the temperature range from 298 to 1073K and pressure range from 0 to 60GPa, and that the Grüneisen parameter for a given density of 2.16g/cm3 varies with temperature in a wind range from 300 to 10000K, expressed by γ = 1.052 + 0.582\exp( - T/4878.56). -
References
-
Related Articles
[1] Shu-Kai He, Jin-Long Jiao, Zhi-Gang Deng, Feng Lu, Lei Yang, Fa-Qiang Zhang, Ke-Gong Dong, Wei Hong, Zhi-Meng Zhang, Bo Zhang, Jian Teng, Wei-Min Zhou, Yu-Qiu Gu. Generation of Ultrahigh-Velocity Collisionless Electrostatic Shocks Using an Ultra-Intense Laser Pulse Interacting with Foil-Gas Target [J]. Chin. Phys. Lett., 2019, 36(10): 105201. doi: 10.1088/0256-307X/36/10/105201 [2] LI Bo, CHEN Yan-Jun, LI Xing. Standing Shocks in the Inner Slow Solar Wind [J]. Chin. Phys. Lett., 2011, 28(5): 059601. doi: 10.1088/0256-307X/28/5/059601 [3] YANG Zhong-Wei, LU Quan-Ming, WANG Shui. Ion Velocity Distributions in a Non-Stationary Perpendicular Shock [J]. Chin. Phys. Lett., 2010, 27(1): 019601. doi: 10.1088/0256-307X/27/1/019601 [4] GUO Jun, LU Quan-Ming. Effects of Ion-to-Electron Mass Ratio on Electron Dynamics in Collisionless Magnetic Reconnection [J]. Chin. Phys. Lett., 2007, 24(11): 3199-3202. [5] LV Jian-Hong, HE Yong, HU Xi-Wei. Electrostatic Instabilities at High Frequency in a Plasma Shock Front [J]. Chin. Phys. Lett., 2007, 24(4): 1000-1003. [6] CHEN Qi-Feng, CAO Xiao-Lin, ZHANG Ying, CAI Ling-Cang, CHEN Dong-Quan. Parallel Molecular Dynamics Simulations of Ejection from the Metal Cu and Al Under Shock Loading [J]. Chin. Phys. Lett., 2005, 22(12): 3151-3154. [7] HU Xi-Wei. Jump Conditions of a Non-Neutral Plasma Shock with Current and Potential Difference [J]. Chin. Phys. Lett., 2002, 19(6): 822-824. [8] WANG Su, CUI Ji-Ping, HE Yu-Zhong, FAN Bing-Cheng, WANG Jing. Shock Tube Studies on Recombination Kinetics of Sodium Ion with Electron [J]. Chin. Phys. Lett., 2001, 18(2): 289-291. [9] YANG Guang-can, DU Meng-li. Analyzing the Photodetachment Cross Section of H- in Parallel Electric and Magnetic Fields [J]. Chin. Phys. Lett., 1996, 13(11): 817-820. [10] MA Jian, FU Shufen, CHEN Jianwen, WANG Zhijiang, CAO Hanqing. ELECTROSTATIC POTENTIAL DISTRIBUTION IN MICROSCOPIC REGIONS BY ELECTRON HOLOGRAPY [J]. Chin. Phys. Lett., 1988, 5(11): 497-500.
DownLoad: