Superconductivity on a bi square net in LiBi

Karolina Górnicka; Sylwia Gutowska; Michał J. Winiarski; Bartlomiej Wiendlocha; Weiwei Xie; R. J. Cava; Tomasz Klimczuk

doi:10.1021/acs.chemmater.0c00179

Superconductivity on a bi square net in LiBi

Karolina Górnicka, Sylwia Gutowska, Michał J. Winiarski, Bartlomiej Wiendlocha, Weiwei Xie, R. J. Cava, Tomasz Klimczuk

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Abstract

We present the crystallographic analysis, superconducting characterization and theoretical modeling of LiBi, that contains the lightest and the heaviest nonradioactive metal. The compound crystallizes in a tetragonal (CuAu-type) crystal structure with Bi square nets separated by Li planes (parameters a = 3.3636(1) Å and c = 4.2459(2) Å, c/a = 1.26). Superconducting state was studied in detail by magnetic susceptibility and heat capacity measurements. The results reveal that LiBi is a moderately coupled type-I superconductor (λ_e-_p = 0.66) with T_c = 2.48 K and a thermodynamic critical field H_c(0) = 157 Oe. Theoretical studies show that bismuth square net is responsible for superconductivity in this compound, but the coupling between the Li planes and Bi planes makes a significant contribution to the superconductivity.

Original language	English (US)
Pages (from-to)	3150-3159
Number of pages	10
Journal	Chemistry of Materials
Volume	32
Issue number	7
DOIs	https://doi.org/10.1021/acs.chemmater.0c00179
State	Published - 2020

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering
Materials Chemistry

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10.1021/acs.chemmater.0c00179

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title = "Superconductivity on a bi square net in LiBi",

abstract = "We present the crystallographic analysis, superconducting characterization and theoretical modeling of LiBi, that contains the lightest and the heaviest nonradioactive metal. The compound crystallizes in a tetragonal (CuAu-type) crystal structure with Bi square nets separated by Li planes (parameters a = 3.3636(1) {\AA} and c = 4.2459(2) {\AA}, c/a = 1.26). Superconducting state was studied in detail by magnetic susceptibility and heat capacity measurements. The results reveal that LiBi is a moderately coupled type-I superconductor (λe-p = 0.66) with Tc = 2.48 K and a thermodynamic critical field Hc(0) = 157 Oe. Theoretical studies show that bismuth square net is responsible for superconductivity in this compound, but the coupling between the Li planes and Bi planes makes a significant contribution to the superconductivity.",

author = "Karolina G{\'o}rnicka and Sylwia Gutowska and Winiarski, {Micha{\l} J.} and Bartlomiej Wiendlocha and Weiwei Xie and Cava, {R. J.} and Tomasz Klimczuk",

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year = "2020",

doi = "10.1021/acs.chemmater.0c00179",

language = "English (US)",

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T1 - Superconductivity on a bi square net in LiBi

AU - Górnicka, Karolina

AU - Gutowska, Sylwia

AU - Winiarski, Michał J.

AU - Wiendlocha, Bartlomiej

AU - Xie, Weiwei

AU - Cava, R. J.

AU - Klimczuk, Tomasz

PY - 2020

Y1 - 2020

N2 - We present the crystallographic analysis, superconducting characterization and theoretical modeling of LiBi, that contains the lightest and the heaviest nonradioactive metal. The compound crystallizes in a tetragonal (CuAu-type) crystal structure with Bi square nets separated by Li planes (parameters a = 3.3636(1) Å and c = 4.2459(2) Å, c/a = 1.26). Superconducting state was studied in detail by magnetic susceptibility and heat capacity measurements. The results reveal that LiBi is a moderately coupled type-I superconductor (λe-p = 0.66) with Tc = 2.48 K and a thermodynamic critical field Hc(0) = 157 Oe. Theoretical studies show that bismuth square net is responsible for superconductivity in this compound, but the coupling between the Li planes and Bi planes makes a significant contribution to the superconductivity.

AB - We present the crystallographic analysis, superconducting characterization and theoretical modeling of LiBi, that contains the lightest and the heaviest nonradioactive metal. The compound crystallizes in a tetragonal (CuAu-type) crystal structure with Bi square nets separated by Li planes (parameters a = 3.3636(1) Å and c = 4.2459(2) Å, c/a = 1.26). Superconducting state was studied in detail by magnetic susceptibility and heat capacity measurements. The results reveal that LiBi is a moderately coupled type-I superconductor (λe-p = 0.66) with Tc = 2.48 K and a thermodynamic critical field Hc(0) = 157 Oe. Theoretical studies show that bismuth square net is responsible for superconductivity in this compound, but the coupling between the Li planes and Bi planes makes a significant contribution to the superconductivity.

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JF - Chemistry of Materials

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Superconductivity on a bi square net in LiBi

Abstract

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