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New Pb-Based 1222 Cuprates, (Pb0.5B0.5)Sr2(RE2−x−y Ce x Sr y )Cu2O z (RE = Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, and Y)

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Abstract

New Pb-based layered cuprates with the 1222 structure have been synthesized in the (Pb0.5B0.5)Sr2 (RE2−x−y Ce x Sr y )Cu2O z (RE = Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, and Y) systems. The almost-single-phase samples in the systems can be obtained for a nominal composition of x=0.7 and y=0.1. The crystal structure of the samples has a tetragonal symmetry, the lattice parameters of a and c are increasing with increasing the ionic radius of RE element. Despite treatment under high O2 pressure of 100 atm, the samples are semiconductors with the transport process characteristic of three-dimensional variable range hopping conduction.

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Authors and Affiliations

  1. Department of Physics, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, Shizuoka, 431-3192, Japan

    Hiroyuki Sasakura & Yoshiya Akagi

  2. Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan

    Shigeki Tsukui & Motoaki Adachi

Authors
  1. Hiroyuki Sasakura
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  2. Yoshiya Akagi
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  3. Shigeki Tsukui
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  4. Motoaki Adachi
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Correspondence to Hiroyuki Sasakura.

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Sasakura, H., Akagi, Y., Tsukui, S. et al. New Pb-Based 1222 Cuprates, (Pb0.5B0.5)Sr2(RE2−x−y Ce x Sr y )Cu2O z (RE = Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, and Y). J Supercond Nov Magn 21, 249–252 (2008). https://doi.org/10.1007/s10948-008-0325-0

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  • DOI: https://doi.org/10.1007/s10948-008-0325-0

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