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Superconductivity Above 100 K Predicted in Carbon-Cage Network.
Hai, Yu-Long; Jiang, Meng-Jing; Tian, Hui-Li; Zhong, Guo-Hua; Li, Wen-Jie; Yang, Chun-Lei; Chen, Xiao-Jia; Lin, Hai-Qing.
Afiliación
  • Hai YL; Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
  • Jiang MJ; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China.
  • Tian HL; Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
  • Zhong GH; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China.
  • Li WJ; Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
  • Yang CL; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China.
  • Chen XJ; Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
  • Lin HQ; University of Chinese Academy of Sciences, Beijing, 100049, China.
Adv Sci (Weinh) ; 10(33): e2303639, 2023 Nov.
Article en En | MEDLINE | ID: mdl-37807820
To explore carbide superconductors with higher transition temperature, two novel carbon structures of cage-network are designed and their superconductivity is studied by doping metals. MC6 and MC10 are respectively identified as C24 and C32 cage-network structures. This study finds that both carbon structures drive strong electron-phonon interaction and can exhibit superconductivity above liquid nitrogen temperature. Importantly, the superconducting transition temperatures above 100 K are predicted to be achieved in C24 -cage-network systems doped by Na, Mg, Al, In, and Tl at ambient pressure, which is far higher than those in graphite, fullerene, and other carbides. Meanwhile, the superconductivity of cage-network carbides is also found to be sensitive to the electronegativity and concentration of dopant M. The result indicates that the higher transition temperatures can be obtained by optimizing the carbon-cage-network structures and the doping conditions. The study suggests that the carbon-cage-network structure is a direction to explore high-temperature superconducting carbides.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies / Risk_factors_studies Idioma: En Revista: Adv Sci (Weinh) Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies / Risk_factors_studies Idioma: En Revista: Adv Sci (Weinh) Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania