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Drastic suppression of the superconductivity of LaFeAsO0.85 by a nonmagnetic impurity

Authors
  • Guo, Y. F.
  • Shi, Y. G.
  • Yu, S.
  • Belik, A. A.
  • Matsushita, Y.
  • Tanaka, M.
  • Katsuya, Y.
  • Kobayashi, K.
  • Nowik, I.
  • Felner, I.
  • Awana, V. P. S.
  • Yamaura, K.
  • Takayama-Muromachi, E.
Type
Preprint
Publication Date
Nov 16, 2009
Submission Date
Nov 16, 2009
Source
arXiv
License
Yellow
External links

Abstract

We observed a drastic Tc suppression caused by no more than 3 at.% of Zn doped to the optimized superconductor LaFeAsO0.85 (Tc = 26 K). The electrical resistivity and magnetic susceptibility measurements suggested that it is likely due to impurity scatterings rather than losing the metallic nature, seeming to support the s+/- pairing model proposed for the Fe pnictide superconductor.

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