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Effect of Zn, Ni and Fe Impurities on Bi2Sr1.6La0.4CuO6+δ

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Abstract

We measured the change of T c with the doping of the magnetic and nonmagnetic impurity in Bi2Sr1.6La0.4CuO6+δ (Bi2201). The reduction of T c is about 20% in samples with Zn (1.1%), Ni (1.0%), and Fe (1.2%), and a slight difference was observed among these samples. We also observed the resonance peak at the Zn-impurity site by scanning tunneling spectroscopy at 4.2 K. The observed resonance peak showed the four-fold symmetry, and appeared at approximately −1.5 meV.

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Authors and Affiliations

  1. Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan

    H. Nakamura, H. Funahashi, M. Fujimoto, M. Iguchi, T. Yamasaki, T. Kato & H. Sakata

  2. Superconducting Materials Center, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibarak, 305-0047, Japan

    T. Machida

Authors
  1. H. Nakamura
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  2. H. Funahashi
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  3. M. Fujimoto
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  4. M. Iguchi
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  5. T. Yamasaki
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  6. T. Machida
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  7. T. Kato
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  8. H. Sakata
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Corresponding author

Correspondence to H. Nakamura.

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Nakamura, H., Funahashi, H., Fujimoto, M. et al. Effect of Zn, Ni and Fe Impurities on Bi2Sr1.6La0.4CuO6+δ . J Supercond Nov Magn 24, 271–273 (2011). https://doi.org/10.1007/s10948-010-1012-5

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  • DOI: https://doi.org/10.1007/s10948-010-1012-5

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