Understanding the origin of superconducting dome in electron-doped MoS$_2$ monolayer
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866913596401778688 |
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| author | Erhardt, Nina Girotto Berges, Jan Poncé, Samuel Novko, Dino |
| author_facet | Erhardt, Nina Girotto Berges, Jan Poncé, Samuel Novko, Dino |
| contents | We investigate the superconducting properties of molybdenum disulphide (MoS$_2$) monolayer across a broad doping range, successfully recreating the so far unresolved superconducting dome. Our first-principles findings reveal several dynamically stable phases across the doping-dependent phase diagram. We observe a doping-induced increase in the superconducting transition temperature $T_c$, followed by a reduction in $T_c$ due to the formation of charge density waves (CDWs), polaronic distortions, and structural transition from the H to the 1T$'$ phase. Our work reconciles various experimental observations of CDWs in MoS$_2$ with its doping-dependent superconducting dome structure, which occurs due to the $1\times 1$ H to $2\times 2$ CDW phase transition. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_02822 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Understanding the origin of superconducting dome in electron-doped MoS$_2$ monolayer Erhardt, Nina Girotto Berges, Jan Poncé, Samuel Novko, Dino Superconductivity Materials Science We investigate the superconducting properties of molybdenum disulphide (MoS$_2$) monolayer across a broad doping range, successfully recreating the so far unresolved superconducting dome. Our first-principles findings reveal several dynamically stable phases across the doping-dependent phase diagram. We observe a doping-induced increase in the superconducting transition temperature $T_c$, followed by a reduction in $T_c$ due to the formation of charge density waves (CDWs), polaronic distortions, and structural transition from the H to the 1T$'$ phase. Our work reconciles various experimental observations of CDWs in MoS$_2$ with its doping-dependent superconducting dome structure, which occurs due to the $1\times 1$ H to $2\times 2$ CDW phase transition. |
| title | Understanding the origin of superconducting dome in electron-doped MoS$_2$ monolayer |
| topic | Superconductivity Materials Science |
| url | https://arxiv.org/abs/2412.02822 |