Email this article Effect of interstitial Coulomb interaction on the occurrence of a gapless superconducting phase of Hubbard fermions on a triangular lattice
- Authors: Val’kov V.V.1, Val’kova T.A.2, Mitskan V.A.1,3
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Affiliations:
- Kirensky Institute of Physics, Siberian Branch
- Siberian Federal University
- Siberian State Aerospace University
- Issue: Vol 80, No 6 (2016)
- Pages: 612-615
- Section: Proceedings of the Interdisciplinary Symposium “Ordering in Minerals and Alloys” OMA-18 and Proceedings of the International Interdisciplinary Symposium “Order, Disorder, and Properties of Oxides” ODPO-18
- URL: https://journals.rcsi.science/1062-8738/article/view/184425
- DOI: https://doi.org/10.3103/S1062873816060393
- ID: 184425
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Abstract
The concentration dependence of the position of nodal points of a superconducting order parameter is investigated using the t–J–V 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.
About the authors
V. V. Val’kov
Kirensky Institute of Physics, Siberian Branch
Author for correspondence.
Email: vvv@iph.krasn.ru
Russian Federation, Krasnoyarsk, 660036
T. A. Val’kova
Siberian Federal University
Email: vvv@iph.krasn.ru
Russian Federation, Krasnoyarsk, 660041
V. A. Mitskan
Kirensky Institute of Physics, Siberian Branch; Siberian State Aerospace University
Email: vvv@iph.krasn.ru
Russian Federation, Krasnoyarsk, 660036; Krasnoyarsk, 660014
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