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Phonon Spectrum and Elastic Constants of Copper at High Pressure
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Gui-Cun MA, Wei-Feng LIU
Chinese Journal of High Pressure Physics | 2008, 22(4) : 337 - 342
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Chinese Journal of High Pressure Physics | 2008, 22(4): 337-342
Phonon Spectrum and Elastic Constants of Copper at High Pressure
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Gui-Cun MA, Wei-Feng LIU
Affiliations
  • Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
Published: 2008-12-05
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Based on the embbeded atom method (EAM) proposed by Foiles, Baskes and Daw, we have established the EAM potential of copper by using Vinet-Rose universal equation of state. Phonon spectrum and elastic constant of copper at high pressure are calculated by first principle perturbation theory and embedded atom methods. Through proper adjustment of the parameters in EAM potential, we get almostly the same results from the two methods. Furthermore, the spectrum of phonons and the specific heat of lattice are all coincide with the experimental values.

perturbation theory of DFT  /  phonon spectrum of copper  /  EAM potential
马桂存, 刘伟峰. 高压下铜的声子谱和弹性系数. 高压物理学报, 2008 , 22 (4) : 337 -342 .
Gui-Cun MA, Wei-Feng LIU. Phonon Spectrum and Elastic Constants of Copper at High Pressure[J]. Chinese Journal of High Pressure Physics, 2008 , 22 (4) : 337 -342 .
Year 2008 volume 22 Issue 4
38
13
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  • Receive Date:2008-01-09
  • Online Date:2026-10-30
  • Published:2008-12-05
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  • Received:2008-01-09
  • Revised:2008-09-23
Affiliations
    Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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