Coexistence of superconductivity and charge density wave in SrPt 2As2

Kazutaka Kudo, Yoshihiro Nishikubo, Minoru Nohara

Research output: Contribution to journalArticle

73 Citations (Scopus)

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 470K and enters into a superconducting state at Tc = 5:2K. The coexistence of superconductivity and CDW refers to Peierls instability with a moderately strong electron-phonon interaction. Thus SrPt2As 2 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.

Original languageEnglish
Article number123710
Journaljournal of the physical society of japan
Volume79
Issue number12
DOIs
Publication statusPublished - Dec 1 2010

Keywords

  • Charge-density wave
  • Non-iron-based pnictide
  • SrPt As
  • Superconductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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