Coexistence of Superconductivity and Charge Density Wave in SrPt2As2

Kazutaka Kudo; Yoshihiro Nishikubo; Minoru Nohara

doi:10.1143/JPSJ.79.123710

Coexistence of Superconductivity and Charge Density Wave in SrPt2As2

Superconductivity 2010-12-14 v2 Strongly Correlated Electrons

Authors: Kazutaka Kudo , Yoshihiro Nishikubo , Minoru Nohara

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Abstract

SrPt2As2 is a novel arsenide superconductor, which crystallizes in the CaBe2Ge2-type structure as a different polymorphic form of the ThCr2Si2-type structure. SrPt2As2 exhibits a charge-density-wave (CDW) ordering at about 470 K and enters into a superconducting state at Tc = 5.2 K. The coexistence of superconductivity and CDW refers to Peierls instability with a moderately strong electron-phonon interaction. Thus SrPt2As2 can be viewed as a nonmagnetic analog of iron-based superconductors, such as doped BaFe2As2, in which superconductivity emerges in close proximity to spin-density-wave ordering.

Keywords

superconductivity charge density wave SrPt2As2 Peierls instability iron-based superconductor electron-phonon interaction

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@article{arxiv.1010.3950,
  title  = {Coexistence of Superconductivity and Charge Density Wave in SrPt2As2},
  author = {Kazutaka Kudo and Yoshihiro Nishikubo and Minoru Nohara},
  journal= {arXiv preprint arXiv:1010.3950},
  year   = {2010}
}

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4 pages, 5 figures

Coexistence of Superconductivity and Charge Density Wave in SrPt2As2

Abstract

Keywords

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