High-pressure high-temperature equation of state of KCl and KBr

QC 20120703
The equation of state of KCl and KBr, compressed in a helium pressure medium in a diamond-anvil cell, has been measured by x-ray diffraction in the B1 and B2 phases up to 165 GPa at 298 K. The P-V-T of B2 KCl and B2 KBr has been calculated by ab initio molecular dynamics in a wide compression range and up to 7000 K. The thermal pressure exhibits a linear behavior with temperature and remains low under high compression. The experimental P-V points and the thermal pressure calculated by molecular dynamics have been used to set up a high-pressure high-temperature equation of state of B2 KCl and B2 KBr. With these equations of state, B2 KCl and B2 KBr can be used as pressure markers in laser-heated diamond-anvil-cell experiments.

Belonoshko, Anatoly B.KTH,Kondenserade materiens teori(Swepub:kth)u14jwox1 (författare)
Garbarino, G. (författare)
Occelli, F. (författare)
Bouvier, P. (författare)
Hanfland, M. (författare)
Mezouar, M. (författare)
KTHKondenserade materiens teori (creator_code:org_t)

Ingår i:Physical Review B. Condensed Matter and Materials Physics85:21, s. 214105-1098-01211550-235X

Av författaren/redakt...: Dewaele, A.; Belonoshko, Anat ...; Garbarino, G.; Occelli, F.; Bouvier, P.; Hanfland, M.; visa fler...; Mezouar, M.; visa färre...

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