Bipolarons in anisotropic crystals and low dimensional structures
We consider a simple bipolaron approach to description of anisotropic crystals in the strongcoupling limit. We have taken into account anisotropy of effective band masses and dielectric constants of crystals. The calculations of energy for two - electron system was fulfiled using wave functions chos...
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| Дата: | 1999 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
1999
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| Назва видання: | Semiconductor Physics Quantum Electronics & Optoelectronics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/119857 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Bipolarons in anisotropic crystals and low dimensional structures / N.I. Kashirina, E.V. Mozdor, E.A. Pashitskij, V.I. Sheka // Semiconductor Physics Quantum Electronics & Optoelectronics. — 1999. — Т. 2, № 2. — С. 7-10. — Бібліогр.: 13 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1198572017-06-11T03:02:33Z Bipolarons in anisotropic crystals and low dimensional structures Kashirina, N.I. Mozdor, E.V. Pashitskij, E.A. Sheka, V.I. We consider a simple bipolaron approach to description of anisotropic crystals in the strongcoupling limit. We have taken into account anisotropy of effective band masses and dielectric constants of crystals. The calculations of energy for two - electron system was fulfiled using wave functions chosen as a linear combination of gaussian orbitals, what enables us to easily estimate the electron correlation effects which can play a key role. Bipolaron formation should be quite possible in crystals with hightemperature superconductivity. We have considered an example of La₂CuO₄,, in which there is a great anisotropy of effective masses and dielectric permittivities, where in the limiting case of the maximum anisotropy of effective masses mxy << mz the bipolaron binding energy is 25 % of the polaron energy. 1999 Article Bipolarons in anisotropic crystals and low dimensional structures / N.I. Kashirina, E.V. Mozdor, E.A. Pashitskij, V.I. Sheka // Semiconductor Physics Quantum Electronics & Optoelectronics. — 1999. — Т. 2, № 2. — С. 7-10. — Бібліогр.: 13 назв. — англ. 1560-8034 PACS 71.38, 73.20.D, 74.80.D http://dspace.nbuv.gov.ua/handle/123456789/119857 en Semiconductor Physics Quantum Electronics & Optoelectronics Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
We consider a simple bipolaron approach to description of anisotropic crystals in the strongcoupling limit. We have taken into account anisotropy of effective band masses and dielectric constants of crystals. The calculations of energy for two - electron system was fulfiled using wave functions chosen as a linear combination of gaussian orbitals, what enables us to easily estimate the electron correlation effects which can play a key role. Bipolaron formation should be quite possible in crystals with hightemperature superconductivity. We have considered an example of La₂CuO₄,, in which there is a great anisotropy of effective masses and dielectric permittivities, where in the limiting case of the maximum anisotropy of effective masses mxy << mz the bipolaron binding energy is 25 % of the polaron energy. |
| format |
Article |
| author |
Kashirina, N.I. Mozdor, E.V. Pashitskij, E.A. Sheka, V.I. |
| spellingShingle |
Kashirina, N.I. Mozdor, E.V. Pashitskij, E.A. Sheka, V.I. Bipolarons in anisotropic crystals and low dimensional structures Semiconductor Physics Quantum Electronics & Optoelectronics |
| author_facet |
Kashirina, N.I. Mozdor, E.V. Pashitskij, E.A. Sheka, V.I. |
| author_sort |
Kashirina, N.I. |
| title |
Bipolarons in anisotropic crystals and low dimensional structures |
| title_short |
Bipolarons in anisotropic crystals and low dimensional structures |
| title_full |
Bipolarons in anisotropic crystals and low dimensional structures |
| title_fullStr |
Bipolarons in anisotropic crystals and low dimensional structures |
| title_full_unstemmed |
Bipolarons in anisotropic crystals and low dimensional structures |
| title_sort |
bipolarons in anisotropic crystals and low dimensional structures |
| publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| publishDate |
1999 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/119857 |
| citation_txt |
Bipolarons in anisotropic crystals and low dimensional structures / N.I. Kashirina, E.V. Mozdor, E.A. Pashitskij, V.I. Sheka // Semiconductor Physics Quantum Electronics & Optoelectronics. — 1999. — Т. 2, № 2. — С. 7-10. — Бібліогр.: 13 назв. — англ. |
| series |
Semiconductor Physics Quantum Electronics & Optoelectronics |
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AT kashirinani bipolaronsinanisotropiccrystalsandlowdimensionalstructures AT mozdorev bipolaronsinanisotropiccrystalsandlowdimensionalstructures AT pashitskijea bipolaronsinanisotropiccrystalsandlowdimensionalstructures AT shekavi bipolaronsinanisotropiccrystalsandlowdimensionalstructures |
| first_indexed |
2023-10-18T20:34:14Z |
| last_indexed |
2023-10-18T20:34:14Z |
| _version_ |
1796150529879965696 |