Observation of superconductivity in SrMnBi2 and Bi interface

K. Vinod, A. Bharathi, A. T. Satya, Shilpam Sharma, T. R. Devidas, Awadhesh Mani, A. K. Sinha, S. K. Deb, V. Sridharan, C. S. Sundar

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We report observation of superconductivity at 5.7 K in the SrMnBi 2+Bi system. SrMnBi2 single crystals and polycrystals were synthesized using stoichiometric mixtures of Sr, Mn and Bi. The resultant SrMnBi2 single crystals had pockets of rhombohedral Bi, precipitated at the surface of the crystals, as seen by SEM and XRD measurements. Resistivity and susceptibility measurements on bulk samples show superconductivity with transition temperature (TC) of 5.7 K. On grinding the bulk samples, superconductivity was seen to vanish together with the vanishing of the expanded Bi lattice peak. It is inferred that the observed superconductivity is associated with the interface in the SrMnBi2+Bi system.

Original languageEnglish
Pages (from-to)60-63
Number of pages4
JournalSolid State Communications
StatePublished - Aug 2014
Externally publishedYes


  • D. Interface superconductivity


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