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

doi:10.1002/chem.201800883

Superconductivity in the 2-Dimensional Homologous Series AM_mBi₃Q_5+m (m=1, 2) (A=Rb, Cs; M=Pb, Sn; Q=Se, Te)

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

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Superconductivity in the two-dimensional AM_mBi₃Q_5+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, AMBi_3−xSb_xTe_6−ySe_y and AM₂Bi_3−xSb_xTe_7−ySe_y (0≤x≤3 or 0≤y≤2). The structural flexibility of the ternary AM_mM′₃Te_5+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 language	English (US)
Pages (from-to)	7118-7122
Number of pages	5
Journal	Chemistry - A European Journal
Volume	24
Issue number	28
DOIs	https://doi.org/10.1002/chem.201800883
State	Published - May 17 2018

Funding

This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division.

Keywords

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

ASJC Scopus subject areas

Catalysis
Organic Chemistry

Access to Document

10.1002/chem.201800883

Cite this

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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.",

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author = "Malliakas, {Christos D.} and Chung, {Duck Young} and Helmut Claus and Kanatzidis, {Mercouri G.}",

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year = "2018",

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AU - Chung, Duck Young

AU - Claus, Helmut

AU - Kanatzidis, Mercouri G.

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N2 - 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.

AB - 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.

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