DataVXChemistry of MaterialsPaper
journal article·2020-04-14Open access

Superconductivity on a Bi Square Net in LiBi

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

Chemistry of Materials· Volume 32· Issue 7
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Source abstract

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 (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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Research context

OpenAlex topics: Superconductivity in MgB2 and Alloys · Physics of Superconductivity and Magnetism · Rare-earth and actinide compounds

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Faculty of Applied Physics and Mathematics, Gdansk University of Technology, ul. Narutowicza 11/12, 80-233 Gdańsk, Poland

Advanced Materials Centre, Gdansk University of Technology, ul. Narutowicza 11/12, 80-233 Gdańsk, Poland

Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Aleja Mickiewicza 30, 30-059 Kraków, Poland

Department of Chemistry, Louisiana State University, Baton Rouge Louisiana 70803, United States

Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States

Funding

European Commission · Narodowe Centrum Nauki · Arnold and Mabel Beckman Foundation

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