Stability of the face-centered-cubic phase of heavy rare gas solids

Conference · Sun Jul 10 00:00:00 EDT 1994 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:6915966

Ree, F H ^[1]; Choi, Y ^[2]

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1. University of California, Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
2. Department of Chemistry, Korea Advanced Institute of Science and Technology, Taejon (Korea, Republic of)

Our recent perturbation theory is applied to show that heavy rare gases solidify into a face-centered-cubic phase over a large temperature range near the melting lines. We have investigated the static, harmonic, and anharmonic contributions to the excess Helmholtz free energy and the stability to the face-centered-cubic phase. The observed stability is due to thermal contributions in the Helmholtz free energy. [copyright] 1994 American Institute of Physics

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6915966
• Report Number(s): CONF-921145--
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (United States), Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Vol. 309:1; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALLIZATION
CUBIC LATTICES
ELEMENTS
ENERGY
FCC LATTICES
FLUIDS
FREE ENERGY
GASES
LATTICE VIBRATIONS
NONMETALS
PERTURBATION THEORY
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
RARE GASES
STABILITY
THERMODYNAMIC PROPERTIES
VERY HIGH PRESSURE