Flux-line lattice state in FeAs-based superconductor KFe2As 2

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

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We report on transverse field muon spin rotation measurements of the magnetic penetration depth λ in the iron-based superconductor KFe 2As2 in order to investigate the superconducting gap mechanism. We have found that temperature dependence of λ shows multiple gap like behavior and λ depends on the field. These results suggests the existence of quasiparticle excitations outside the vortices.

Original languageEnglish
Article number022087
JournalJournal of Physics: Conference Series
Issue numberPART 2
Publication statusPublished - 2012
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ohishi, K., Ishii, Y., Watanabe, I., Fukazawa, H., Saito, T., Kohori, Y., ... Eisaki, H. (2012). Flux-line lattice state in FeAs-based superconductor KFe2As 2. Journal of Physics: Conference Series, 400(PART 2), [022087]. https://doi.org/10.1088/1742-6596/400/2/022087