期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 440, 期 -, 页码 129-132出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2016.12.085
关键词
Superconductivity; Chiral order parameter; Triangular lattice
资金
- Russian Foundation for Basic Research [16-02-00073]
- Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology [16-42-240435]
Using the diagram technique for the Hubbard operators an integral equation that determines the order parameter of the superconducting phase Delta(p) was obtained in the framework of t-J-V and t-J*-V models on triangular lattice. It is shown that there are two scenarios of formation of superconducting phase with gapless spectrum at the critical concentration of carriers x(c). The effect of three-center terms on implementation of this phase was also considered.
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