2014/01/23 by Yu. A. Freĭman, Yu. A. Freiman, S. M. Tretyak +9
Chemistry · Engineering · Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Phase Equilibria and Thermodynamics #Quantum, superfluid, helium dynamics #Spectroscopy and Laser Applications #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1401.5928
arxiv created 2014/01/23 · openalex publication_date 2014/01/23 · arxiv updated 2014/01/24 · openalex created_date 2022/10/04 · openalex updated_date 2026/07/28
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 (hcp) lattice of p-H2, o-D2 and n-H2 are calculated using the semi-empirical lattice-dynamic approach. It is shown that the lattice distortion in the J-even species is two order of magnitude smaller compared with that found in n-H2, and n-D2. The difference is due to the splitting of the J-odd rotational levels in the J-even - J-odd mixtures.