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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| Опубліковано в: : | Физика низких температур |
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| Дата: | 1996 |
| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
1996
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/176070 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-176070 |
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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 |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system |
| spellingShingle |
Dielectric instabilities and phase transitions in pseudospin-electron model of HTSC system Stasyuk, I.V. Специальный выпуск Международная конференция "Сверхпроводимость. Физические аспекты" |
| title_short |
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_sort |
dielectric instabilities and phase transitions in pseudospin-electron model of htsc system |
| author |
Stasyuk, I.V. |
| author_facet |
Stasyuk, I.V. |
| topic |
Специальный выпуск Международная конференция "Сверхпроводимость. Физические аспекты" |
| topic_facet |
Специальный выпуск Международная конференция "Сверхпроводимость. Физические аспекты" |
| publishDate |
1996 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| 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.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/176070 |
| 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. |
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