Lattice dynamics of cryocrystals at high pressure
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Lattice dynamics of cryocrystals at high pressure
|
|
| Creator |
Horbenko, E.E.
Troitskaya, E.P. Chabanenko, Val.V. |
|
| Subject |
Classical Cryocrystals
|
|
| Description |
The lattice dynamics of cryocrystals is investigated from first principles in the framework of the Tolpygo model over a wide range of pressures. The phonon frequencies in rare-gas solids are calculated in terms of models that go beyond the scope of adiabatic approximation. At high pressure the phonon spectrum along the Δ and Σ directions is distorted and the longitudinal L- and transverse T₂-modes soften as a result of the electron–phonon interaction, with the relative contribution decreasing in the sequence Ar, Kr, Xe. The calculated phonon frequencies are in good agreement with the experimental data for argon crystals of a pressure 3.1 GPa. |
|
| Date |
2017-06-16T07:27:01Z
2017-06-16T07:27:01Z 2007 |
|
| Type |
Article
|
|
| Identifier |
Lattice dynamics of cryocrystals at high pressure / E.E. Horbenko, E.P. Troitskaya, Val.V. Chabanenko // Физика низких температур. — 2007. — Т. 33, № 6-7. — С. 752-757. — Бібліогр.: 28 назв. — англ.
0132-6414 PACS: 63.20.Dj; 63.20.Kr http://dspace.nbuv.gov.ua/handle/123456789/121779 |
|
| Language |
en
|
|
| Relation |
Физика низких температур
|
|
| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
|
|