Superconductivity on a bi square net in LiBi

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

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)3150-3159
Number of pages10
JournalChemistry of Materials
Volume32
Issue number7
DOIs
StatePublished - 2020

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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