Effect of interstitial Coulomb interaction on the occurrence of a gapless superconducting phase of Hubbard fermions on a triangular lattice

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The concentration dependence of the position of nodal points of a superconducting order parameter is investigated using the tJV model for a triangular lattice with regard to the exchange and Coulomb interactions in two coordination spheres. The conditions for a topological quantum transition are established.

作者简介

V. Val’kov

Kirensky Institute of Physics, Siberian Branch

编辑信件的主要联系方式.
Email: vvv@iph.krasn.ru
俄罗斯联邦, Krasnoyarsk, 660036

T. Val’kova

Siberian Federal University

Email: vvv@iph.krasn.ru
俄罗斯联邦, Krasnoyarsk, 660041

V. Mitskan

Kirensky Institute of Physics, Siberian Branch; Siberian State Aerospace University

Email: vvv@iph.krasn.ru
俄罗斯联邦, Krasnoyarsk, 660036; Krasnoyarsk, 660014

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