Coexistence of superconductivity and antiferromagnetic ordering in the layered superconductor SmFePO

Yoichi Kamihara, Hidenori Hiramatsu, Masahiro Hirano, Yasuhiro Kobayashi, Shinji Kitao, Satoshi Higashitaniguchi, Yoshitaka Yoda, Makoto Seto, Hideo Hosono

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Superconductivity and magnetic transition in SmFePO were examined by electric, magnetic, F 57 e Mössbauer, and S 149 m nuclear resonant forward-scattering (NRFS) measurements. Zero resistivity and negative magnetic susceptibility were observed in an undoped SmFePO, indicating superconducting transition temperature (Tc) of ∼3 K. Tc in undoped SmFePO appears in a narrow region of lattice constants with an optimum conductivity. Furthermore, in relation to magnetic susceptibility, NRFS spectra verify that magnetic moments of Sm3+ ions order antiferromagnetically below magnetic transition ∼5 K, accompanying a discontinuous drop in electrical resistivity, whereas F 57 e Mössbauer spectra show that magnetic moments of Fe are quenched. These results indicate the coexistence of superconductivity and magnetic ordering in a crystallographic unit cell of SmFePO.

Original languageEnglish
Article number184512
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number18
DOIs
Publication statusPublished - 2008 Nov 18
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Coexistence of superconductivity and antiferromagnetic ordering in the layered superconductor SmFePO'. Together they form a unique fingerprint.

  • Cite this