Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system
The possible dielectric instabilities and phase transitions in high-Tc superconductors are analyzed within the pseudospin-electron model involving Hubbard type electron correlations as well as their interaction with local an-harmonic vibrational modes. The calculation of the dynamic dielectric susce...
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| Published in: | Физика низких температур |
|---|---|
| Date: | 1996 |
| Main Author: | |
| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
1996
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/176070 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system / I.V. Stasyuk, A.M. Shvaika // Физика низких температур. — 1996. — Т. 22, № 5. — С. 535-538. — Бібліогр.: 14 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862602915150036992 |
|---|---|
| author | Stasyuk, I.V. |
| author_facet | Stasyuk, I.V. |
| citation_txt | Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system / I.V. Stasyuk, A.M. Shvaika // Физика низких температур. — 1996. — Т. 22, № 5. — С. 535-538. — Бібліогр.: 14 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | The possible dielectric instabilities and phase transitions in high-Tc superconductors are analyzed within the pseudospin-electron model involving Hubbard type electron correlations as well as their interaction with local an-harmonic vibrational modes. The calculation of the dynamic dielectric susceptibility χ(ω, q) is performed in the generalized random phase approximation. The instabilities with respect to the polarization and/or charge fluctuations are obtained from the temperature dependences of χ(ω, q). The behavior of low-frequency modes in the vicinity of these instabilities is investigated. The case of the infinity narrow electron band is considered in details.
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| first_indexed | 2025-11-28T04:05:53Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-176070 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-28T04:05:53Z |
| publishDate | 1996 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Stasyuk, I.V. 2021-02-03T15:32:23Z 2021-02-03T15:32:23Z 1996 Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system / I.V. Stasyuk, A.M. Shvaika // Физика низких температур. — 1996. — Т. 22, № 5. — С. 535-538. — Бібліогр.: 14 назв. — англ. 0132-6414 https://nasplib.isofts.kiev.ua/handle/123456789/176070 The possible dielectric instabilities and phase transitions in high-Tc superconductors are analyzed within the pseudospin-electron model involving Hubbard type electron correlations as well as their interaction with local an-harmonic vibrational modes. The calculation of the dynamic dielectric susceptibility χ(ω, q) is performed in the generalized random phase approximation. The instabilities with respect to the polarization and/or charge fluctuations are obtained from the temperature dependences of χ(ω, q). The behavior of low-frequency modes in the vicinity of these instabilities is investigated. The case of the infinity narrow electron band is considered in details. The research described in this publication was made possible in part by Grant No K6A100 from the Joint Fund of the Government of Ukraine and International Science Foundation. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Специальный выпуск Международная конференция "Сверхпроводимость. Физические аспекты" Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system Article published earlier |
| spellingShingle | Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system Stasyuk, I.V. Специальный выпуск Международная конференция "Сверхпроводимость. Физические аспекты" |
| title | Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system |
| title_full | Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system |
| title_fullStr | Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system |
| title_full_unstemmed | Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system |
| title_short | Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system |
| title_sort | dielectric instabilities and phase transitions in pseudospin-electron model of htsc system |
| topic | Специальный выпуск Международная конференция "Сверхпроводимость. Физические аспекты" |
| topic_facet | Специальный выпуск Международная конференция "Сверхпроводимость. Физические аспекты" |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/176070 |
| work_keys_str_mv | AT stasyukiv dielectricinstabilitiesandphasetransitionsinpseudospinelectronmodelofhtscsystem |