Perspective on RBa2Cu3Ox materials from oxygen deficiency studies

R. S. Kwok, Sang-Wook Cheong, J. D. Thompson, Z. Fisk, J. L. Smith, J. O. Willis

Research output: Contribution to journalArticle

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Abstract

We have measured the electrical resistivity, thermoelectric power, magnetic susceptibility, Hall coefficient and upper critical field near Tc in EuBa2Cu3Ox, where 6.09<x<7.0. These data suggest a Mott-Hubbard-like transition near a critical oxygen concentration xc∼6.4-6.5. Our results, combined with those reported elsewhere, show a striking similarity between the addition of oxygen to EuBa2Cu3O6 and the substitution of divalent atoms M for La in La2-yMyCuO4. We suggest that superconductivity in both systems is associated with the Cu-O planes and is driven electronically.

Original languageEnglish (US)
Pages (from-to)240-246
Number of pages7
JournalPhysica C: Superconductivity and its applications
Volume152
Issue number3
DOIs
StatePublished - May 1 1988

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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