Superconducting and Topological Properties in Centrosymmetric PbTaS2 Single Crystals

J. J. Gao; J. G. Si; X. Luo; J. Yan; Z. Z. Jiang; W. Wang; C. Q. Xu; X. F. Xu; P. Tong; W. H. Song; X. B. Zhu; W. J. Lu; Y. P. Sun

doi:10.1021/acs.jpcc.0c00527

Superconducting and Topological Properties in Centrosymmetric PbTaS2 Single Crystals

Superconductivity 2020-05-22 v1

Authors: J. J. Gao , J. G. Si , X. Luo , J. Yan , Z. Z. Jiang , W. Wang , C. Q. Xu , X. F. Xu , P. Tong , W. H. Song , X. B. Zhu , W. J. Lu , Y. P. Sun

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Abstract

We report the superconductivity of PbTaS2 single crystals with the centrosymmetric structure. The systematic measurements of magnetization, electric transport and specific heat indicate that PbTaS2 is a weakly coupled type-II superconductor with transition temperature Tc = 2.6 K. Furthermore, the band structure calculations predicted four nodal lines near the Fermi energy with drumhead-like surface states, suggesting centrosymmetric PbTaS2 is a candidate of topological nodal line semimetals. These results demonstrate that PbTaS2 may open up another avenue for further exploring the properties of superconductivity and topological nodal-line states.

Keywords

PbTaS2 single crystals superconductivity type-II superconductor topological nodal line semimetal band structure specific heat

Cite

@article{arxiv.2005.10525,
  title  = {Superconducting and Topological Properties in Centrosymmetric PbTaS2 Single Crystals},
  author = {J. J. Gao and J. G. Si and X. Luo and J. Yan and Z. Z. Jiang and W. Wang and C. Q. Xu and X. F. Xu and P. Tong and W. H. Song and X. B. Zhu and W. J. Lu and Y. P. Sun},
  journal= {arXiv preprint arXiv:2005.10525},
  year   = {2020}
}

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21 pages, 3 figures, 1 table

Superconducting and Topological Properties in Centrosymmetric PbTaS2 Single Crystals

Abstract

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