Superconductivity in the 2-Dimensional Homologous Series AMmBi3Q5+m (m=1, 2) (A=Rb, Cs; M=Pb, Sn; Q=Se, Te)

Christos D. Malliakas, Duck Young Chung, Helmut Claus, Mercouri G. Kanatzidis

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Superconductivity in the two-dimensional AMmBi3Q5+m family of semimetals is reported. The AMBi3Te6 (m=1) and AM2Bi3Te7 (m=2) members of the homologous series with A=Rb, Cs and M=Pb, Sn undergo a bulk superconducting transition ranging from 2.7 to 1.4 K depending on the composition. The estimated superconducting volume fraction is about 90 %. Superconducting phase diagrams as a function of chemical pressure are constructed for the solid solution products of each member of the homologous series, AMBi3−xSbxTe6−ySey and AM2Bi3−xSbxTe7−ySey (0≤x≤3 or 0≤y≤2). The structural flexibility of the ternary AMmM′3Te5+m semiconducting homology to form isostructural analogues with a variety of metals, M=Pb, Sn; M′=Bi, Sb, gives access to a large number of electronic configurations and superconductivity due to chemical pressure effects.

Original languageEnglish
Pages (from-to)7118-7122
Number of pages5
JournalChemistry - A European Journal
Volume24
Issue number28
DOIs
Publication statusPublished - May 17 2018

Keywords

  • bismuth-based superconductors
  • homologous series
  • superconductivity
  • two-dimensional layered compounds

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

Fingerprint Dive into the research topics of 'Superconductivity in the 2-Dimensional Homologous Series AM<sub>m</sub>Bi<sub>3</sub>Q<sub>5+m</sub> (m=1, 2) (A=Rb, Cs; M=Pb, Sn; Q=Se, Te)'. Together they form a unique fingerprint.

Cite this