Coexistence of supercondcutivity and magnetism in LaFeAs(O 0.94F0.06) probed by muon spin relaxation

Soshi Takeshita, Ryosuke Kadono, Masatoshi Hiraishi, Masanori Miyazaki, Akihiro Koda, Yoichi Kamihara, Hideo Hosono

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The presence of macroscopic phase separation into superconducting and spin-glass-like magnetic phases in LaFeAs(O1-xFx) is demonstrated by muon spin rotation measurement in a sample near the phase boundary (x = 0:06). Both magnetism and superconductivity develop simultaneously below a common critical temperature, Tm ≃ Tc ≃ 18 K. This remarkable accordance strongly suggests that the electronic correlations leading to these two competing ground states share a common origin.

Original languageEnglish
Article number103703
JournalJournal of the Physical Society of Japan
Volume77
Issue number10
DOIs
Publication statusPublished - 2008 Oct 1
Externally publishedYes

Keywords

  • Electronic correlation
  • Magnetism
  • Muon spin rotation
  • Oxypnictide superconductor

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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