Magnetic penetration depth in the FeAs-based superconductor KFe 2As2

Kazuki Ohishi, Yasuyuki Ishii, Isao Watanabe, Hideto Fukazawa, Taku Saito, Yoh Kohori, Kunihiro Kihou, Chul Ho Lee, Hijiri Kito, Akira Iyo, Hiroshi Eisaki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Transverse-field muon spin rotation measurements were performed on the iron-based superconductor, KFe2As2, in order to investigate the superconducting gap mechanism. We found that the temperature dependence of the magnetic penetration depth λ shows multiple gap-like behavior and that λ depends on the field. These results suggest the existence of quasiparticle excitations outside the vortices.

Original languageEnglish
Article numberSB046
JournalJournal of the Physical Society of Japan
Volume81
Issue numberSUPPL.B
Publication statusPublished - 2012 Sep 1
Externally publishedYes

Keywords

  • Iron-based superconductivity
  • KFeAs
  • Penetration depth
  • μSR

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Magnetic penetration depth in the FeAs-based superconductor KFe <sub>2</sub>As<sub>2</sub>'. Together they form a unique fingerprint.

  • Cite this

    Ohishi, K., Ishii, Y., Watanabe, I., Fukazawa, H., Saito, T., Kohori, Y., Kihou, K., Lee, C. H., Kito, H., Iyo, A., & Eisaki, H. (2012). Magnetic penetration depth in the FeAs-based superconductor KFe 2As2. Journal of the Physical Society of Japan, 81(SUPPL.B), [SB046].