Lattice distortion of quantum cryocrystals under pressure

• Published in: Физика низких температур
• Date: 2006
• Main Authors: Tretyak, S.M., Antsygina, T.N., Freiman, Yu.A.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2006
• Subjects: Cryocrystals
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/120889
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Lattice distortion of quantum cryocrystals under pressure / S.M. Tretyak, T.N. Antsygina, Yu.A. Freiman // Физика низких температур. — 2006. — Т. 32, № 11. — С. 1409–1413. — Бібліогр.: 18 назв. — англ.

The hcp lattice distortion parameter δ, the deviation of c/a ratio from the ideal hcp value √ 8/3 , have been calculated for solid He under pressure taking into account two- and three-body interatomic forces. The resulting lattice distortion parameter is small and negative, that is the lattice is sl...