Kohn–Luttinger effect and anomalous pairing in repulsive Fermi-systems at low density
In the large variety of models such as 3D and 2D Fermi-gas model with hard-core repulsion, 3D and 2D Hubbard model, and Shubin–Vonsovsky model we demonstrate the possibility of triplet p-wave pairing at low electron density. We show that the critical temperature of the p-wave pairing can be strong...
Збережено в:
| Дата: | 2012 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2012
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/117620 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Kohn–Luttinger effect and anomalous pairing in repulsive Fermi-systems at low density / M.Yu. Kagan, D.V. Efremov, M.S. Mar’enko, V.V. Val’kov // Физика низких температур. — 2012. — Т. 38, № 9. — С. 1102-1108. — Бібліогр.: 59 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | In the large variety of models such as 3D and 2D Fermi-gas model with hard-core repulsion, 3D and 2D
Hubbard model, and Shubin–Vonsovsky model we demonstrate the possibility of triplet p-wave pairing at low
electron density. We show that the critical temperature of the p-wave pairing can be strongly increased in a spinpolarized
case or in a two-band situation already at low density and reach experimentally observable values of
(1–5) K. We also discuss briefly d-wave pairing and high-Tc superconductivity with Tc ~ 100 K which arises
in the extended Hubbard model and in the generalized t-J model close to half-filling. |
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