12 citations · 32 across the 6 of their papers we have counts for
6 papers
Elastic anisotropy and Poisson's ratio of solid helium under pressure
A. Grechnev, S. M. Tretyak, Yu. A. Freiman +2
The elastic moduli, elastic anisotropy coefficients, sound velocities and Poisson's ratio of hcp solid helium have been calculated using density functional theory in generalized gr…
Poisson's ratio in cryocrystals under pressure
Yu. A. Freiman, Alexei Grechnev, S. M. Tretyak +2
We present results of lattice dynamics calculations of Poisson's ratio (PR) for solid hydrogen and rare gas solids (He, Ne, Ar, Kr and Xe) under pressure. Using two complementary a…
Crystal field and related phenomena in hexagonal close-packed H2 and D2 under pressure
Yu. A. Freiman, S. M. Tretyak, Alexei Grechnev +2
The lattice distortion parameter (the deviation of the c/a ratio from the ideal value 1.633), orientational order parameter, and crystal-field parameter in hexagonal close-packed (…
Sound velocities of hexagonal close-packed H2 and He under pressure
Yu. A. Freiman, Alexei Grechnev, S. M. Tretyak +3
Bulk, shear, and compressional aggregate sound velocities of hydrogen and helium in the close- packed hexagonal structure are calculated over a wide pressure range using two comple…
Equation of state and Raman-active lattice phonon in phases I, II, and III of solid hydrogen and deuterium
Yu. A. Freiman, Alexei Grechnev, S. M. Tretyak +2
We present results of lattice dynamics calculations of the equation of state and the pressure dependence of the Raman-active lattice phonon for H and D$_…
Lattice distortion in hcp rare gas solids
A. Grechnev, S. M. Tretyak, Yu. A. Freiman
The lattice distortion parameter has been calculated as a function of molar volume for the hcp phases of He, Ar, Kr and Xe. Results from both semi-empirica…