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Journal of Superconductivity and Novel Magnetism

, Volume 23, Issue 7, pp 1381–1384 | Cite as

Synthesis of New Pb-Based 1232 Cuprate Containing Boron in the (Pb0.5B0.5) Sr2(Er3−xy Ce x Sr y )Cu2O z System

  • Hiroyuki Sasakura
  • Yoshiya Akagi
  • Masashi Tanaka
  • Shigeki Tsukui
  • Motoaki Adachi
Original Paper

Abstract

New Pb-based layered cuprates containing boron with the 1232 structure have been synthesized in the (Pb0.5B0.5)Sr2(Er3−xy Ce x Sr y )Cu2O z system. Nearly the single 1232 phase samples are obtained for the nominal composition of 1.6≤x≤1.9 and y=0.2. A sample with the composition of (Pb0.5B0.5)Sr2(Er1.2Ce1.6Sr0.2)Cu2O z shows resistivity-dropping phenomenon below 10 K and it shows a diamagnetic signal at about 9.0 K, though the superconducting volume fraction is very small. From these results, the sample may well be a new Pb-based superconductor with the 1232 structure.

Keywords

New Pb-based cuprate 1232 phase (Pb0.5B0.5)Sr2 (Er3−x−yCexSry)Cu2Oz system Superconductivity 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Hiroyuki Sasakura
    • 1
  • Yoshiya Akagi
    • 1
  • Masashi Tanaka
    • 2
  • Shigeki Tsukui
    • 3
  • Motoaki Adachi
    • 3
  1. 1.Department of PhysicsHamamatsu University School of MedicineHamamatsu-shiJapan
  2. 2.Department of PhysicsShizuoka UniversitySuruga-kuJapan
  3. 3.Department of Chemical Engineering, Graduate School of EngineeringOsaka Prefecture UniversitySakai-shiJapan

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