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періодичних видань НАН України
Kohn–Luttinger effect and anomalous pairing in repulsive Fermi-systems at low density
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Kohn–Luttinger effect and anomalous pairing in repulsive Fermi-systems at low density
Тема:
К 80-летию Виктора Валентиновича Еременко
Інший ID:
PACS: 71.27.+а, 71.10.–w
Посилання:
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.
Підтримка:
The authors acknowledge helpful discussions with A.V.
Chubukov, A.S. Alexandrov, V.V. Kabanov, K.I. Kugel,
Yu.V. Kopaev, N.M. Plakida, N.V. Prokof’ev, M.Yu.K.
work was supported by RFBR grant № 11–02–00741-а.
Дата:
2012
Переглядів:
834
Завантажень:
423
Анотація:
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.
