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Superconductivity at 4.4K in PdTe2-chains of a Ta Based Compound

Superconductivity 2015-06-01 v3 Materials Science Strongly Correlated Electrons

Abstract

Superconductivity in PdTe2 heavy transition metal based compounds is rapidly developing field in condensed matter physics community. Here, we report superconductivity in a nominal ternary telluride Ta2Pd0.97Te6 compound, which is synthesized in sealed evacuated quartz ampoule. The resultant compound is crystallized in layered monoclinic Ta4Pd3Te16 phase with space group C2/m, having lattice parameters a=21.304(6)A, b=3.7365(7)A, and c=17.7330A with Beta =120.65(1)degree. Both transport and magnetic measurements demonstrated bulk superconductivity at 4.4K in studied polycrystalline sample. The metallic normal state conductivity can be well ascribed to Fermi-liquid behaviour. The superconducting upper critical field of the compound is determined to be 5.5Tesla based on magneto-restively measurements.

Keywords

Cite

@article{arxiv.1412.4462,
  title  = {Superconductivity at 4.4K in PdTe2-chains of a Ta Based Compound},
  author = {Reena Goyal and Brajesh Tiwari and Rajveer Jha and V. P. S Awana},
  journal= {arXiv preprint arXiv:1412.4462},
  year   = {2015}
}

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10 pages text+Figs