HREM on the new superconducting compound Nd1.5Ce0.5Sr2Cu2NbO10-δ

H. W. Zandbergen, R. J. Cava, J. J. Krajewski, W. F. Peck

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Nd1.5Ce0.5Sr2Cu2NbO10-δ has been studied with high resolution electron microscopy and electron diffraction. The structure consists of a block of layers CuO2SrONbO2SrOCuO2 having a perovskite-like structure sandwiched with a (Nd,Ce)O2(Nd,Ce) block which has a fluorite-like stacking. A ap√2, ap√2, c superstructure (space group Acam) occurs due to rotation of the NbO6 octahedra about the c-axis. The supercell ordering along the c-axis is very short range resulting in strongly streaked superreflections along c*.

Original languageEnglish (US)
Pages (from-to)223-229
Number of pages7
JournalPhysica C: Superconductivity and its applications
Issue number1-2
StatePublished - Mar 1 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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