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Synthesis and transport properties of Srx(Nb1-yVy)O3 (0≤y≤0.5)

  • Kazuyuki Isawa
  • Jun Sugiyama
  • H. Yamauchi
Conference paper

Abstract

We investigated the structural and physical properties of Sr x (Nb 1-y V y ) O3 compounds. Powder x-ray diffraction analysis indicated that the samples with x=0.9 and 0 ≤ y ≤ 0.4 were nearly single phase of the cubic perovskite structure. For the samples with y ≤ 0.1, electrical resistivity (ρ) exhibited metallic behavior at temperatures below 300K, while for the samples with 0.2 ≤ y ≤ 0.4, ρ showed semiconducting behavior. Since the ln ρ -vs- T-1/4 curves were found to be pseudo-linear, the electrical conduction of the samples with 0.2 ≤ y ≤ 0.4 were likely due to variable-range hopping of carriers. For the sample with y=0, the magnetic susceptibility (χ) exhibited Curie-Weiss behavior below 300K. On the other hand, χ-vs- T curve of the samples with 0.1 ≤ y ≤ 0.4 had an anomalous broad peak at ~20K.

Keywords

Magnetic Susceptibility Electrical Resistivity Magnetic Anomaly Perovskite Structure Field Cool 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Tokyo 1994

Authors and Affiliations

  • Kazuyuki Isawa
    • 1
  • Jun Sugiyama
    • 1
  • H. Yamauchi
    • 1
  1. 1.Superconductivity Research LaboratoryInternational Superconductivity Technology CenterKoto-ku, Tokyo 135Japan

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