Ab initio investigation of hydrogen-based high T c superconductor that is stable under ambient environment
We report an ab initio investigation of a hydrogen-based high- T _c superconductor candidate—crystalized C _4 H _4 in the cubic-gauche ( cg -C _4 H _4 ) structure, with the symmetry of space group I _213 . We find the cg -C _4 H _4 structure to be stable under ambient environment; and the evaluation...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/abce77 |
| _version_ | 1797750285037207552 |
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| author | Ting Zhang |
| author_facet | Ting Zhang |
| author_sort | Ting Zhang |
| collection | DOAJ |
| description | We report an ab initio investigation of a hydrogen-based high- T _c superconductor candidate—crystalized C _4 H _4 in the cubic-gauche ( cg -C _4 H _4 ) structure, with the symmetry of space group I _213 . We find the cg -C _4 H _4 structure to be stable under ambient environment; and the evaluation of the electron-phonon coupling strength indicates that the heavily doped cg -C _4 H _4 can generate superconductivity with a T _c ∼ 72 K. The high frequency vibrational modes of hydrogen atoms are found to play an important role in the total electron-phonon interaction strength, and the reduction of structural symmetry compared with graphene further enhances the electron–phonon coupling of the carbon framework. Our investigation illustrates a BCS route to realizing the hydrogen-based high T _c superconductivity. |
| first_indexed | 2024-03-12T16:30:29Z |
| format | Article |
| id | doaj.art-617ebd891a74450880d93f18d71f17e9 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:30:29Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-617ebd891a74450880d93f18d71f17e92023-08-08T15:30:06ZengIOP PublishingNew Journal of Physics1367-26302020-01-01221212301710.1088/1367-2630/abce77Ab initio investigation of hydrogen-based high T c superconductor that is stable under ambient environmentTing Zhang0https://orcid.org/0000-0001-7933-4940Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay , Kowloon, Hong Kong SAR, People’s Republic of ChinaWe report an ab initio investigation of a hydrogen-based high- T _c superconductor candidate—crystalized C _4 H _4 in the cubic-gauche ( cg -C _4 H _4 ) structure, with the symmetry of space group I _213 . We find the cg -C _4 H _4 structure to be stable under ambient environment; and the evaluation of the electron-phonon coupling strength indicates that the heavily doped cg -C _4 H _4 can generate superconductivity with a T _c ∼ 72 K. The high frequency vibrational modes of hydrogen atoms are found to play an important role in the total electron-phonon interaction strength, and the reduction of structural symmetry compared with graphene further enhances the electron–phonon coupling of the carbon framework. Our investigation illustrates a BCS route to realizing the hydrogen-based high T _c superconductivity.https://doi.org/10.1088/1367-2630/abce77hydrogen based superconductivitystabilityelectron-phonon interactionphonon spectrum |
| spellingShingle | Ting Zhang Ab initio investigation of hydrogen-based high T c superconductor that is stable under ambient environment New Journal of Physics hydrogen based superconductivity stability electron-phonon interaction phonon spectrum |
| title | Ab initio investigation of hydrogen-based high T c superconductor that is stable under ambient environment |
| title_full | Ab initio investigation of hydrogen-based high T c superconductor that is stable under ambient environment |
| title_fullStr | Ab initio investigation of hydrogen-based high T c superconductor that is stable under ambient environment |
| title_full_unstemmed | Ab initio investigation of hydrogen-based high T c superconductor that is stable under ambient environment |
| title_short | Ab initio investigation of hydrogen-based high T c superconductor that is stable under ambient environment |
| title_sort | ab initio investigation of hydrogen based high t c superconductor that is stable under ambient environment |
| topic | hydrogen based superconductivity stability electron-phonon interaction phonon spectrum |
| url | https://doi.org/10.1088/1367-2630/abce77 |
| work_keys_str_mv | AT tingzhang abinitioinvestigationofhydrogenbasedhightcsuperconductorthatisstableunderambientenvironment |