Superconducting properties of BaBi3

Neel Haldolaarachchige, S. K. Kushwaha, Quinn Gibson, R. J. Cava

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

We report the superconducting properties of single crystals of the intermetallic compound BaBi3, whose crystal structure is perovskite related. The superconducting transition temperature ( K) was obtained from heat capacity measurements. Using the measured values for the critical fields , and the specific heat C, we estimate the thermodynamic critical field H c (0), coherence length ξ(0), Debye temperature and coupling constant λep. and λep suggest that BaBi3 is a weakly coupled superconductor. Electronic band structure calculations show a complex Fermi surface and a moderately high DOS at the Fermi level. Further analysis of the electronic specific heat shows that the superconducting properties are dominated by s-wave gap.

Original languageEnglish (US)
Article number105001
JournalSuperconductor Science and Technology
Volume27
Issue number10
DOIs
StatePublished - Oct 1 2014

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Keywords

  • alkaline
  • bismuth
  • critical field
  • perovskite
  • physical properties
  • suerconductor
  • superconducting gap

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