Abstract A systematic study of the Hugoniot equation of state, phase transition, and the other thermodynamic properties including the Hugoniot temperature, the electronic and ionic heat capacities, and the Grüneisen parameter for shock-compressed BeO, has been carried out by calculating the total free energy. The method of calculations combines first-principles treatment for 0 K and finite-T electronic contribution and the mean-field-potential approach for the vibrational contribution of the lattice ion to the total energy. Our calculated Hugoniot is in good agreement with the experimental data.
Received: 18 June 2007
Revised: 02 November 2007
Accepted manuscript online:
Fund: Project supported in part by the
National Natural Science Foundation of China (Grant Nos 10544004 and
10604010).
Cite this article:
Zhang Qi-Li(张其黎), Zhang Ping(张平), Song Hai-Feng(宋海峰), and Liu Hai-Feng(刘海风) Mean-field potential calculations of high-pressure equation of state for BeO 2008 Chin. Phys. B 17 1341
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
