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

被引：0

作者：

Kagan, M. Yu. ^{[1
]}

Efremov, D. V. ^{[2
]}

Mar'enko, M. S. ^{[3
]}

Val'kov, V. V. ^{[4
]}

机构：

[1] Kapitza Inst Phys Problems, Moscow 19334, Russia

[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[3] Hofstra Univ, Dept Phys & Astron, Hempstead, NY 11549 USA

[4] Kirenskii Inst Phys, Krasnoyarsk 660036, Russia

来源：

LOW TEMPERATURE PHYSICS | 2012年 / 38卷 / 09期

关键词：

d-wave superconductivity; electron density; electron spin polarisation; high-temperature superconductors; Hubbard model; superconducting transition temperature; t-J model; two-dimensional electron gas; T-J MODEL; SUPERFLUID TRANSITION-TEMPERATURE; 2-BAND HUBBARD-MODEL; SUPERCONDUCTIVITY; ELECTRON; ENHANCEMENT; MECHANISM; STATE; GAS; CONDUCTION;

D O I：

10.1063/1.4752091

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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]

引用

页码：874 / 879

页数：6

共 59 条

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