First-principles prediction of high-temperature superconductivity in stretched carbon nanotubes
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866910054713655296 |
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| author | Li, Hua-Zhen Yan, Xun-Wang |
| author_facet | Li, Hua-Zhen Yan, Xun-Wang |
| contents | Superconductivity in quasi-one-dimensional systems is an significant but undervalued research field. In this work, based on the electron-phonon coupling mechanism, we systematically investigate the superconductivity in quasi-one-dimensional carbon nanotube under uniaxial tensile strain. The calculated superconducting critical temperature attains its peak value of 162 K at a uniaxial tensile strain of 4.5\%, being drastically higher than the counterpart in the unstrained carbon nanotube. An overall softening of phonons, strong electron-phonon coupling, and an increase of electronic density of states at the Fermi level, play key roles in achieving high-temperature superconductivity in this system. Our research demonstrates that stretching is an effective approach to modulating the superconductivity one-dimensional materials, and more importantly, indicates that high-temperature superconductivity may occur in carbon nanotubes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_15305 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | First-principles prediction of high-temperature superconductivity in stretched carbon nanotubes Li, Hua-Zhen Yan, Xun-Wang Superconductivity Materials Science Superconductivity in quasi-one-dimensional systems is an significant but undervalued research field. In this work, based on the electron-phonon coupling mechanism, we systematically investigate the superconductivity in quasi-one-dimensional carbon nanotube under uniaxial tensile strain. The calculated superconducting critical temperature attains its peak value of 162 K at a uniaxial tensile strain of 4.5\%, being drastically higher than the counterpart in the unstrained carbon nanotube. An overall softening of phonons, strong electron-phonon coupling, and an increase of electronic density of states at the Fermi level, play key roles in achieving high-temperature superconductivity in this system. Our research demonstrates that stretching is an effective approach to modulating the superconductivity one-dimensional materials, and more importantly, indicates that high-temperature superconductivity may occur in carbon nanotubes. |
| title | First-principles prediction of high-temperature superconductivity in stretched carbon nanotubes |
| topic | Superconductivity Materials Science |
| url | https://arxiv.org/abs/2603.15305 |