Poisson’s ratio in cryocrystals under pressure
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 approaches — the semi-empirical many-body calculations and the first-principle density-functional theory calculations w...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2015 |
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2015
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/127831 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Poisson’s ratio in cryocrystals under pressure / Yu.A. Freiman, Alexei Grechnev, S.M. Tretyak, Alexander F. Goncharov, and Eugene Gregoryanz // Физика низких температур. — 2015. — Т. 41, № 6. — С. 571-575. — Бібліогр.: 25 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | 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 approaches — the semi-empirical
many-body calculations and the first-principle density-functional theory calculations we found three different
types of pressure dependencies of PR. While for solid helium PR monotonically decreases with rising pressure,
for Ar, Kr, and Xe it monotonically increases with pressure. For solid hydrogen and Ne the pressure dependencies
of PR are nonmonotonic displaying rather deep minimums. The role of the intermolecular potentials in this
diversity of patterns is discussed.
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| ISSN: | 0132-6414 |