Kohn-Luttinger effect and anomalous pairing in repulsive Fermi-systems at low density (Review Article)
DOI (Low Temperature Physics):
https://doi.org/10.1063/1.4752091Ключові слова:
Fermi-gas model, superconductivity, 3D and 2D Hubbard model.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.
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Опубліковано
2012-07-13
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M.Yu. Kagan, D.V. Efremov, M.S. Mar’enko, and V.V. Val’kov, Kohn-Luttinger effect and anomalous pairing in repulsive Fermi-systems at low density (Review Article), Low Temp. Phys. 38, (2012) [Fiz. Nizk. Temp. 38, 1102-1108, (2012)] DOI: https://doi.org/10.1063/1.4752091.
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