Superconductivity in the Narrow Gap Semiconductor RbBi11/3Te6

Christos D Malliakas; Duck Young Chung; Helmut Claus; Mercouri Kanatzidis

doi:10.1021/jacs.6b08732

Superconductivity in the Narrow Gap Semiconductor RbBi_11/3Te₆

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

^*Corresponding author for this work

Chemistry

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

17 Scopus citations

Abstract

Superconductivity was discovered in the layered compound RbBi_11/3Te₆, featuring Bi vacancies and a narrow band gap of 0.25(2) eV at room temperature. A sharp superconducting transition at ∼3.2 K was observed in polycrystalline ingots. The superconducting volume fraction of oriented single crystals is almost 100%, confirming bulk superconductivity. Systematic Se and Sb substitutions in RbBi_11/3-ySb_ySe_xTe_6-x revealed a dependence of the superconducting transition on composition that can increase the T_c up to ∼10%. The RbBi_11/3Te₆ system is the first member of the new homologous series Rb[Bi_2n+11/3Te_3n+6] with infinite Bi₂Te₃-like layers. The large degree of chemical tunability of the electronic structure of the homology via doping and/or substitution gives rise to a new family of superconductors.

Original language	English (US)
Pages (from-to)	14694-14698
Number of pages	5
Journal	Journal of the American Chemical Society
Volume	138
Issue number	44
DOIs	https://doi.org/10.1021/jacs.6b08732
State	Published - Nov 9 2016

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

Access to Document

10.1021/jacs.6b08732

Fingerprint Dive into the research topics of 'Superconductivity in the Narrow Gap Semiconductor RbBi<sub>11/3</sub>Te<sub>6</sub>'. Together they form a unique fingerprint.

Cite this

@article{1531f5f8c71946a499676fd7a05d096a,

title = "Superconductivity in the Narrow Gap Semiconductor RbBi11/3Te6",

abstract = "Superconductivity was discovered in the layered compound RbBi11/3Te6, featuring Bi vacancies and a narrow band gap of 0.25(2) eV at room temperature. A sharp superconducting transition at ∼3.2 K was observed in polycrystalline ingots. The superconducting volume fraction of oriented single crystals is almost 100%, confirming bulk superconductivity. Systematic Se and Sb substitutions in RbBi11/3-ySbySexTe6-x revealed a dependence of the superconducting transition on composition that can increase the Tc up to ∼10%. The RbBi11/3Te6 system is the first member of the new homologous series Rb[Bi2n+11/3Te3n+6] with infinite Bi2Te3-like layers. The large degree of chemical tunability of the electronic structure of the homology via doping and/or substitution gives rise to a new family of superconductors.",

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

note = "Funding Information: This work is supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. Use of the Advanced Photon Source at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.",

year = "2016",

month = nov,

day = "9",

doi = "10.1021/jacs.6b08732",

language = "English (US)",

volume = "138",

pages = "14694--14698",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "44",

}

TY - JOUR

T1 - Superconductivity in the Narrow Gap Semiconductor RbBi11/3Te6

AU - Malliakas, Christos D

AU - Chung, Duck Young

AU - Claus, Helmut

AU - Kanatzidis, Mercouri

N1 - Funding Information: This work is supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. Use of the Advanced Photon Source at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.

PY - 2016/11/9

Y1 - 2016/11/9

N2 - Superconductivity was discovered in the layered compound RbBi11/3Te6, featuring Bi vacancies and a narrow band gap of 0.25(2) eV at room temperature. A sharp superconducting transition at ∼3.2 K was observed in polycrystalline ingots. The superconducting volume fraction of oriented single crystals is almost 100%, confirming bulk superconductivity. Systematic Se and Sb substitutions in RbBi11/3-ySbySexTe6-x revealed a dependence of the superconducting transition on composition that can increase the Tc up to ∼10%. The RbBi11/3Te6 system is the first member of the new homologous series Rb[Bi2n+11/3Te3n+6] with infinite Bi2Te3-like layers. The large degree of chemical tunability of the electronic structure of the homology via doping and/or substitution gives rise to a new family of superconductors.

AB - Superconductivity was discovered in the layered compound RbBi11/3Te6, featuring Bi vacancies and a narrow band gap of 0.25(2) eV at room temperature. A sharp superconducting transition at ∼3.2 K was observed in polycrystalline ingots. The superconducting volume fraction of oriented single crystals is almost 100%, confirming bulk superconductivity. Systematic Se and Sb substitutions in RbBi11/3-ySbySexTe6-x revealed a dependence of the superconducting transition on composition that can increase the Tc up to ∼10%. The RbBi11/3Te6 system is the first member of the new homologous series Rb[Bi2n+11/3Te3n+6] with infinite Bi2Te3-like layers. The large degree of chemical tunability of the electronic structure of the homology via doping and/or substitution gives rise to a new family of superconductors.

UR - http://www.scopus.com/inward/record.url?scp=84994504398&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84994504398&partnerID=8YFLogxK

U2 - 10.1021/jacs.6b08732

DO - 10.1021/jacs.6b08732

M3 - Article

C2 - 27744685

AN - SCOPUS:84994504398

VL - 138

SP - 14694

EP - 14698

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 44

ER -