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

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Superconductivity
Metalloids
Pressure effects
Phase diagrams
Solid solutions
Volume fraction
Metals
Chemical analysis

Keywords

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

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Superconductivity in the 2-Dimensional Homologous Series AMmBi3Q5+m (m=1, 2) (A=Rb, Cs; M=Pb, Sn; Q=Se, Te). / Malliakas, Christos D.; Chung, Duck Young; Claus, Helmut; Kanatzidis, Mercouri G.

In: Chemistry - A European Journal, Vol. 24, No. 28, 17.05.2018, p. 7118-7122.

Research output: Contribution to journalArticle

Malliakas, Christos D. ; Chung, Duck Young ; Claus, Helmut ; Kanatzidis, Mercouri G. / Superconductivity in the 2-Dimensional Homologous Series AMmBi3Q5+m (m=1, 2) (A=Rb, Cs; M=Pb, Sn; Q=Se, Te). In: Chemistry - A European Journal. 2018 ; Vol. 24, No. 28. pp. 7118-7122.
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