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CsV_{3}Sb_{5}: A Z_{2} Topological Kagome Metal with a Superconducting Ground State.
Ortiz, Brenden R; Teicher, Samuel M L; Hu, Yong; Zuo, Julia L; Sarte, Paul M; Schueller, Emily C; Abeykoon, A M Milinda; Krogstad, Matthew J; Rosenkranz, Stephan; Osborn, Raymond; Seshadri, Ram; Balents, Leon; He, Junfeng; Wilson, Stephen D.
Afiliación
  • Ortiz BR; Materials Department and California Nanosystems Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA.
  • Teicher SML; Materials Department and California Nanosystems Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA.
  • Hu Y; Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Zuo JL; Materials Department and California Nanosystems Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA.
  • Sarte PM; Materials Department and California Nanosystems Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA.
  • Schueller EC; Materials Department and California Nanosystems Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA.
  • Abeykoon AMM; National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Krogstad MJ; Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439-4845, USA.
  • Rosenkranz S; Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439-4845, USA.
  • Osborn R; Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439-4845, USA.
  • Seshadri R; Materials Department and California Nanosystems Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA.
  • Balents L; Kavli Institute for Theoretical Physics, University of California, Santa Barbara, Santa Barbara, California 93106, USA.
  • He J; Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Wilson SD; Materials Department and California Nanosystems Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA.
Phys Rev Lett ; 125(24): 247002, 2020 Dec 11.
Article en En | MEDLINE | ID: mdl-33412053
Recently discovered alongside its sister compounds KV_{3}Sb_{5} and RbV_{3}Sb_{5}, CsV_{3}Sb_{5} crystallizes with an ideal kagome network of vanadium and antimonene layers separated by alkali metal ions. This work presents the electronic properties of CsV_{3}Sb_{5}, demonstrating bulk superconductivity in single crystals with a T_{c}=2.5 K. The normal state electronic structure is studied via angle-resolved photoemission spectroscopy and density-functional theory, which categorize CsV_{3}Sb_{5} as a Z_{2} topological metal. Multiple protected Dirac crossings are predicted in close proximity to the Fermi level (E_{F}), and signatures of normal state correlation effects are also suggested by a high-temperature charge density wavelike instability. The implications for the formation of unconventional superconductivity in this material are discussed.
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Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2020 Tipo del documento: Article
Texto completo
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XML
PubMed Links
Buscar en Google

Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2020 Tipo del documento: Article