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Superconductivity in Mo4Ga20As with endohedral gallium clusters.
Ruan, Bin-Bin; Chen, Le-Wei; Shi, Yun-Qing; Yi, Jun-Kun; Yang, Qing-Song; Zhou, Meng-Hu; Ma, Ming-Wei; Chen, Gen-Fu; Ren, Zhi-An.
Afiliación
  • Ruan BB; Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
  • Chen LW; Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
  • Shi YQ; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
  • Yi JK; Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
  • Yang QS; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
  • Zhou MH; Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
  • Ma MW; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
  • Chen GF; Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
  • Ren ZA; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
J Phys Condens Matter ; 35(21)2023 Mar 21.
Article en En | MEDLINE | ID: mdl-36913736
We report the discovery and detailed investigation of superconductivity in Mo4Ga20As. Mo4Ga20As crystallizes in a space group ofI4/m(No. 87), with the lattice parametersa= 12.86352 Å andc= 5.30031 Å. The resistivity, magnetization, and specific heat data reveal Mo4Ga20As to be a type-II superconductor withTc= 5.6 K. The upper and lower critical fields are estimated to be 2.78 T and 22.0 mT, respectively. In addition, electron-phonon coupling in Mo4Ga20As is possibly stronger than the BCS weak-coupling limit. First-principles calculations suggest the Fermi level being dominated by the Mo-4dand Ga-4porbitals.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Phys Condens Matter Asunto de la revista: BIOFISICA Año: 2023 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Phys Condens Matter Asunto de la revista: BIOFISICA Año: 2023 Tipo del documento: Article Pais de publicación: Reino Unido