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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.
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Authors (7)
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Sylwia Gutowska
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Bartlomiej Wiendlocha
-
Weiwei Xie
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R.j. Cava
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
CHEMISTRY OF MATERIALS
no. 32,
pages 3150 - 3159,
ISSN: 0897-4756 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Górnicka K., Gutowska S., Winiarski M., Wiendlocha B., Xie W., Cava R., Klimczuk T.: Superconductivity on a Bi Square Net in LiBi// CHEMISTRY OF MATERIALS -Vol. 32,iss. 7 (2020), s.3150-3159
- DOI:
- Digital Object Identifier (open in new tab) 10.1021/acs.chemmater.0c00179
- Verified by:
- Gdańsk University of Technology
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