Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 22, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/22/9/095401
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Funding
- Japan Synchrotron Radiation Research Institute [2008A1203]
- Japan Society for the Promotion of Science
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NeHe2 was compressed to about 90 GPa using a diamond anvil cell technique. The crystal structure was confirmed to be stable with hexagonal symmetry in the investigated pressure range and its p-V equation of state was determined by angular dispersive x-ray diffraction with synchrotron radiation. With the help of ab initio calculations, the compressibility and inter-atomic distances of NeHe2 were compared with those of a helium and neon mixture of the same composition. This study shows that the bulk modulus of NeHe2 is between those of neon and helium and that linear compressibilities of the inter-atomic distances are different from those of the elementary solids. This material can be a pressure-transmitting medium, providing both a large sample space and good quasi-hydrostatic conditions.
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