Mean-field potential calculations of shock-compressed porous carbon

Y. Wang; Z. K. Liu; L. Q. Chen; L. Burakovsky; D. L. Preston; W. Luo; B. Johansson; R. Ahuja

doi:10.1103/PhysRevB.71.054110

Mean-field potential calculations of shock-compressed porous carbon

Y. Wang, Z. K. Liu, L. Q. Chen, L. Burakovsky, D. L. Preston, W. Luo, B. Johansson, R. Ahuja

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13 Scopus citations

Abstract

The mean-field potential approach with first-principles total energy data as input is used to investigate shock-compressed carbon with initial densities of 3.51, 2.2, 1.85, and 1.6 g/cm ³ up to 1400 GPa. We have calculated the shock Hugoniot, and the temperature and electronic contribution to the heat capacity along the Hugoniot. While excellent agreement with underground nuclear explosion data is obtained, our results do not show the high compressibility of carbon at megabar pressures indicated by recent laser-driven shock wave experiments.

Original language	English (US)
Article number	054110
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	71
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.71.054110
State	Published - Feb 2005

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.71.054110

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title = "Mean-field potential calculations of shock-compressed porous carbon",

abstract = "The mean-field potential approach with first-principles total energy data as input is used to investigate shock-compressed carbon with initial densities of 3.51, 2.2, 1.85, and 1.6 g/cm 3 up to 1400 GPa. We have calculated the shock Hugoniot, and the temperature and electronic contribution to the heat capacity along the Hugoniot. While excellent agreement with underground nuclear explosion data is obtained, our results do not show the high compressibility of carbon at megabar pressures indicated by recent laser-driven shock wave experiments.",

author = "Y. Wang and Liu, {Z. K.} and Chen, {L. Q.} and L. Burakovsky and Preston, {D. L.} and W. Luo and B. Johansson and R. Ahuja",

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AU - Wang, Y.

AU - Liu, Z. K.

AU - Chen, L. Q.

AU - Burakovsky, L.

AU - Preston, D. L.

AU - Luo, W.

AU - Johansson, B.

AU - Ahuja, R.

PY - 2005/2

Y1 - 2005/2

N2 - The mean-field potential approach with first-principles total energy data as input is used to investigate shock-compressed carbon with initial densities of 3.51, 2.2, 1.85, and 1.6 g/cm 3 up to 1400 GPa. We have calculated the shock Hugoniot, and the temperature and electronic contribution to the heat capacity along the Hugoniot. While excellent agreement with underground nuclear explosion data is obtained, our results do not show the high compressibility of carbon at megabar pressures indicated by recent laser-driven shock wave experiments.

AB - The mean-field potential approach with first-principles total energy data as input is used to investigate shock-compressed carbon with initial densities of 3.51, 2.2, 1.85, and 1.6 g/cm 3 up to 1400 GPa. We have calculated the shock Hugoniot, and the temperature and electronic contribution to the heat capacity along the Hugoniot. While excellent agreement with underground nuclear explosion data is obtained, our results do not show the high compressibility of carbon at megabar pressures indicated by recent laser-driven shock wave experiments.

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Mean-field potential calculations of shock-compressed porous carbon

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