Higher-order topological superconductivity in type-II time-reversal-symmetric Weyl semimetals with a hybrid pairing
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| Format: | Preprint |
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2025
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| _version_ | 1866911473582735360 |
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| author | Huang, Junkang Wang, Z. D. Zhou, Tao |
| author_facet | Huang, Junkang Wang, Z. D. Zhou, Tao |
| contents | We employed the self-consistent method on a two-orbital type-II time-reversal-symmetric Weyl semimetal, revealing a hybrid pairing of singlet $s$-wave and triplet $p$-wave. We present a detailed analysis of the normal-state electronic structure and the self-consistent results. Our findings indicate that the selection of hybrid pairings is governed by distinct surface Fermi-arc configurations: specifically, $s$-wave pairing dominates on the bottom surface, while $p$-wave pairing prevails on the top. Furthermore, the emergent superconducting state is a second-order topological superconductors with hinge states in the system. Our results identify type-II time-reversal-invariant Weyl semimetals as a promising intrinsic platform for realizing unconventional and topological superconductivity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_08973 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Higher-order topological superconductivity in type-II time-reversal-symmetric Weyl semimetals with a hybrid pairing Huang, Junkang Wang, Z. D. Zhou, Tao Superconductivity We employed the self-consistent method on a two-orbital type-II time-reversal-symmetric Weyl semimetal, revealing a hybrid pairing of singlet $s$-wave and triplet $p$-wave. We present a detailed analysis of the normal-state electronic structure and the self-consistent results. Our findings indicate that the selection of hybrid pairings is governed by distinct surface Fermi-arc configurations: specifically, $s$-wave pairing dominates on the bottom surface, while $p$-wave pairing prevails on the top. Furthermore, the emergent superconducting state is a second-order topological superconductors with hinge states in the system. Our results identify type-II time-reversal-invariant Weyl semimetals as a promising intrinsic platform for realizing unconventional and topological superconductivity. |
| title | Higher-order topological superconductivity in type-II time-reversal-symmetric Weyl semimetals with a hybrid pairing |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2511.08973 |