Thermoelectric power and superconducting transition in high-temperature superconductors Dy1-xPrxBa2Cu3O7

Z. J. Huang, J. G. Lin*, Juhn-Jong Lin, J. C. Ho, C. Y. Huang

*Corresponding author for this work

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5 Scopus citations

Abstract

The thermoelectric power (S) and superconducting transition temperature (Tc) have been systematically measured for a series of Dy1-xPrxBa2Cu3O7-d with x from 0 to 0.6. Our results show that S increases progressively with increasing x while Tc decreases. Based on the empirical relation between S and the carrier concentration (n), n has been extracted. The result shows a clear reduction of n with increasing x, with a linear relation for x > 0.15. This hole reduction is consistent with the hole-depletion model proposed by Liechtenstein and Mazin. Our Tc-n data are in a remarkable agreement with the universal parabolic Tc-n relation, demonstrating that the Tc suppression with Pr doping comes mainly from the hole-depletion effect.

Original languageEnglish
Pages (from-to)220-224
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume269
Issue number3-4
DOIs
StatePublished - 1 Oct 1996

Keywords

  • Hole depletion
  • Pr doping
  • Superconductivity
  • Thermoelectric power

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