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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2412.08119 |
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| _version_ | 1866909424529965056 |
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| author | Seeyangnok, J. Pinsook, U. Ackland, G. J. |
| author_facet | Seeyangnok, J. Pinsook, U. Ackland, G. J. |
| contents | Two-dimensional (2D) lithium-decorated materials have emerged as a significant area of study since the prediction of superconductivity in lithium-decorated graphene at temperatures around 8.1 K, with experimental evidence observed at Tc = 5.9 K. Following earlier studies, this paper focuses on the hexagonal Janus MoSeLi monolayer as a promising candidate for Li-decorated 2D materials. Our research reveals that lithium substitution on a selenium layer of MoSe2 can produce a hexagonal Janus MoSeLi monolayer, which exhibits metallic behavior with potential phonon-mediated superconductivity with a critical temperature Tc of 4.5 K. Additionally, by solving the anisotropic gap equations derived from Migdal-Eliashberg theory, we found that the Janus MoSeLi monolayer exhibits two-gap superconductivity. This finding underscores the potential of hexagonal Janus MoSeLi as a significant Li-decorated 2D material for exploring two-dimensional superconductivity and sets the stage for further investigations into new families of Janus transition-metal chalcogenides. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_08119 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Two-gap superconductivity in a Janus MoSeLi monolayer Seeyangnok, J. Pinsook, U. Ackland, G. J. Superconductivity Two-dimensional (2D) lithium-decorated materials have emerged as a significant area of study since the prediction of superconductivity in lithium-decorated graphene at temperatures around 8.1 K, with experimental evidence observed at Tc = 5.9 K. Following earlier studies, this paper focuses on the hexagonal Janus MoSeLi monolayer as a promising candidate for Li-decorated 2D materials. Our research reveals that lithium substitution on a selenium layer of MoSe2 can produce a hexagonal Janus MoSeLi monolayer, which exhibits metallic behavior with potential phonon-mediated superconductivity with a critical temperature Tc of 4.5 K. Additionally, by solving the anisotropic gap equations derived from Migdal-Eliashberg theory, we found that the Janus MoSeLi monolayer exhibits two-gap superconductivity. This finding underscores the potential of hexagonal Janus MoSeLi as a significant Li-decorated 2D material for exploring two-dimensional superconductivity and sets the stage for further investigations into new families of Janus transition-metal chalcogenides. |
| title | Two-gap superconductivity in a Janus MoSeLi monolayer |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2412.08119 |