Pairing correlation of the Kagome-lattice Hubbard model with the nearest-neighbor interaction
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909445868486656 |
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| author | Yang, Chen Chen, Chao Ma, Runyu Liang, Ying Ma, Tianxing |
| author_facet | Yang, Chen Chen, Chao Ma, Runyu Liang, Ying Ma, Tianxing |
| contents | A recently discovered family of Kagome lattice materials, $\emph{A}\mathrm{V}_{3}\mathrm{Sb}_{5}$($\emph{A}$= $\mathrm{K,Rb,Cs}$), has attracted great interest, especially in the debate over its dominant superconducting pairing symmetry. To explore this issue, we study the superconducting pairing behavior within the Kagome-Hubbard model through the constrained path Monte Carlo method. It is found that doping around the Dirac point generates a dominant next-nearest-neighbour-$d$ pairing symmetry driven by on-site Coulomb interaction $U$. However, when considering the nearest-neighbor interaction $V$, it may induce nearest-neighbor-$p$ pairing to become the preferred pairing symmetry. Our results provide useful information to identify the dominant superconducting pairing symmetry in $\emph{A}\mathrm{V}_{3}\mathrm{Sb}_{5}$ family. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2501_00251 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Pairing correlation of the Kagome-lattice Hubbard model with the nearest-neighbor interaction Yang, Chen Chen, Chao Ma, Runyu Liang, Ying Ma, Tianxing Strongly Correlated Electrons A recently discovered family of Kagome lattice materials, $\emph{A}\mathrm{V}_{3}\mathrm{Sb}_{5}$($\emph{A}$= $\mathrm{K,Rb,Cs}$), has attracted great interest, especially in the debate over its dominant superconducting pairing symmetry. To explore this issue, we study the superconducting pairing behavior within the Kagome-Hubbard model through the constrained path Monte Carlo method. It is found that doping around the Dirac point generates a dominant next-nearest-neighbour-$d$ pairing symmetry driven by on-site Coulomb interaction $U$. However, when considering the nearest-neighbor interaction $V$, it may induce nearest-neighbor-$p$ pairing to become the preferred pairing symmetry. Our results provide useful information to identify the dominant superconducting pairing symmetry in $\emph{A}\mathrm{V}_{3}\mathrm{Sb}_{5}$ family. |
| title | Pairing correlation of the Kagome-lattice Hubbard model with the nearest-neighbor interaction |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2501.00251 |