Kohn-Luttinger effect and anomalous pairing in repulsive Fermi-systems at low 
density

Kagan, M. Y.; Efremov, D. V.; Mar'enko, M. S.; Val'kov, V. V.

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Kohn-Luttinger effect and anomalous pairing in repulsive Fermi-systems at low density

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Efremov, D. V.
Max Planck Society;

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Citation

Kagan, M. Y., Efremov, D. V., Mar'enko, M. S., & Val'kov, V. V. (2012). Kohn-Luttinger effect and anomalous pairing in repulsive Fermi-systems at low density. Low Temperature Physics, 38(9), 874-879.

Cite as: https://hdl.handle.net/21.11116/0000-000E-C2D4-7

Abstract

We demonstrate the possibility of triplet p-wave pairing at low electron density a large number of models such as 3D and 2D Fermi-gas models with hard-core repulsion, 3D and 2D Hubbard models, and the Shubin-Vonsovsky model. The critical temperature for p-wave pairing can be considerably higher in the spin-polarized case or even in a two-band situation at low density and can reach experimentally observable values of 1-5 K. We also discuss briefly the d-wave pairing and high-T-c superconductivity with T-c similar to 100K which arise in the extended Hubbard model and in the generalized t-J model when close to half-filling. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4752091]