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Chinese Journal of High Pressure Physics  > 1998  >  12(2): 145-149 .
CAI Ling-Cang, LIU Fu-Sheng, JING Fu-Qian. Theoretical Isothermal Compression Curve for Solid Helium[J]. Chinese Journal of High Pressure Physics, 1998, 12(2): 145-149 . doi: 10.11858/gywlxb.1998.02.013
Citation: CAI Ling-Cang, LIU Fu-Sheng, JING Fu-Qian. Theoretical Isothermal Compression Curve for Solid Helium[J]. Chinese Journal of High Pressure Physics, 1998, 12(2): 145-149 . doi: 10.11858/gywlxb.1998.02.013
shu

Theoretical Isothermal Compression Curve for Solid Helium

doi: 10.11858/gywlxb.1998.02.013
  • 1.

    Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Chengdu 610003, China;

  • 2.

    Institute of Applied Physics, Sichuan Union University, Chengdu 610065, China

More Information
  • Corresponding author: CAI Ling-Cang
  • Received Date: 29 Dec 1997
  • Rev Recd Date: 23 Feb 1998
  • Publish Date: 05 Jun 1998
    Abstract
  • Based on the theory of atomic cluster and taking account of the screening effects induced by nearest-neighbor and next nearest-neighbor atoms, we have calculated the many-body repulsive potential and isothermal compression curve for solid helium with hcp lattice configuration. The calculation result is in agreement with the experimental data that obtained from high static-pressure measurements covering pressure range of about 5～25 GPa, and therefore also more reasonable than those previously proposed. Discussions on the limitations of two-body potential of Aziz, three-body potential of Loubeyre, and equivalent potential of Ross and Young are also given in the paper.

     

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