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Superconductivity on a Bi Square Net in LiBi

Author(s): Górnicka, Karolina; Gutowska, Sylwia; Winiarski, Michał J; Wiendlocha, Bartlomiej; Xie, Weiwei; et al

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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 (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.
Publication Date: 16-Mar-2020
Electronic Publication Date: 16-Mar-2020
Citation: Górnicka, Karolina, Gutowska, Sylwia, Winiarski, Michał J, Wiendlocha, Bartlomiej, Xie, Weiwei, Cava, RJ, Klimczuk, Tomasz. (2020). Superconductivity on a Bi Square Net in LiBi. Chemistry of Materials, 32 (7), 3150 - 3159. doi:10.1021/acs.chemmater.0c00179
DOI: doi:10.1021/acs.chemmater.0c00179
ISSN: 0897-4756
EISSN: 1520-5002
Pages: 3150 - 3159
Language: en
Type of Material: Journal Article
Journal/Proceeding Title: Chemistry of Materials
Version: Final published version. This is an open access article.



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