Superconductivity in the narrow-gap semiconductor CsBi4Te 6

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

doi:10.1021/ja407530u

Superconductivity in the narrow-gap semiconductor CsBi₄Te ₆

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

Northwestern University

Research output: Contribution to journal › Article

35 Citations (Scopus)

Abstract

Superconductivity was discovered in the narrow-gap semiconductor CsBi ₄Te₆. A superconducting transition around 4.4 K was observed for p-type samples in temperature-dependent resistivity and magnetic susceptibility data. Stoichiometric CsBi₄Te₆ is not a superconductor. A remarkably high critical field of ∼10 T was estimated from the field-dependent resistivity data. The strongly anisotropic CsBi ₄Te₆ system is monoclinic and the first member of a larger homologous series Cs₄[Bi_2n+4Te_3n+6] that exhibits unconventional superconductivity, suggesting that proper doping of the homologous series may create a novel class of superconductors from semiconductors.

Original language	English
Pages (from-to)	14540-14543
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	135
Issue number	39
DOIs	https://doi.org/10.1021/ja407530u
Publication status	Published - Oct 2 2013

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ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

Cite this

Malliakas, C. D., Chung, D. Y., Claus, H., & Kanatzidis, M. G. (2013). Superconductivity in the narrow-gap semiconductor CsBi₄Te ₆. Journal of the American Chemical Society, 135(39), 14540-14543. https://doi.org/10.1021/ja407530u

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AB - Superconductivity was discovered in the narrow-gap semiconductor CsBi 4Te6. A superconducting transition around 4.4 K was observed for p-type samples in temperature-dependent resistivity and magnetic susceptibility data. Stoichiometric CsBi4Te6 is not a superconductor. A remarkably high critical field of ∼10 T was estimated from the field-dependent resistivity data. The strongly anisotropic CsBi 4Te6 system is monoclinic and the first member of a larger homologous series Cs4[Bi2n+4Te3n+6] that exhibits unconventional superconductivity, suggesting that proper doping of the homologous series may create a novel class of superconductors from semiconductors.

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10.1021/ja407530u