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Journal of Materials Science

, Volume 27, Issue 10, pp 2623–2626 | Cite as

Elastic anomaly of YBa2Cu3O7−x superconductors containing different oxygen contents

  • P. G. Galliano
  • N. Soga
  • K. Hirao
Papers

Abstract

Four samples of YBa2Cu3O7−x with different values of x were prepared and characterized, and their elastic properties from 80 K to room temperature were investigated. It was found that an anomalous softening of the elastic moduli G, K, and E temperatures slightly higher than Tc appeared only on the specimens with the superconducting orthorhombic phase. As the value of x became small and the transition width ΔTc became narrower, the softening became remarkable. The elastic constants also showed a thermal hysteresis at low temperatures. Relationships between this behaviour and proposed structural and domain changes are discussed.

Keywords

Oxygen Polymer Elastic Modulus Oxygen Content Elastic Property 
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

© Chapman & Hall 1992

Authors and Affiliations

  • P. G. Galliano
    • 1
  • N. Soga
    • 1
  • K. Hirao
    • 1
  1. 1.Faculty of EngineeringKyoto UniversityKyotoJapan

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