(RE1-xSrx)8Cu8O20 (RE = Pr, Nd) synthesized under a high pressure of oxygen, PO2 = 20 MPa

Yoshiki Amamoto, Hisanori Yamane, Toshio Hirai

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11 Citations (Scopus)

Abstract

(RE1-xSrx)8Cu8O20 compounds were prepared for RE = Pr (x = 0.35) and RE = Nd (x = 0.40) under 100 MPa of 20% O2-80% Ar gas (PO2 = 20 MPa) at 1273 K. Their crystal structures characterized by X-ray diffraction and electron diffraction are tetragonal, space group P4lmbm, with lattice constants of a = 1.07920 and c = 0.38057 nm for RE = Pr and a = 1.07961 and c = 0.37841 nm for RE = Nd. They are isostructural with (La1-xSrx)8Cu8O20-δ (0.16 ≤ x ≤ 0.24). The resistivity at 300 K was 3.4 mΩ cm for RE = Pr and 7.0 mΩ cm for RE = Nd and decreased with decreasing temperature down to 13 K. The magnetic susceptibility shows Curie-Weiss behavior for both compounds.

Original languageEnglish
Pages (from-to)117-124
Number of pages8
JournalJournal of Solid State Chemistry
Volume125
Issue number2
DOIs
Publication statusPublished - 1996 Sep 5

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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