Praseodymium and high-temperature superconductivity: Thermodynamic, structural, and critical correlations

V. E. Lamberti, M. A. Rodriguez, J. D. Trybulski, A. Navrotsky

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The enthalpies of formation and the partial molar enthalpies of oxidation of polycrystalline LnBa2Cu3O, (Ln = Pr, Nd, Eu, Gd, Dy, Ho, Tm) and Y1-xPrxBa2Cu3Oy (x = 0.0, 0.1, 0.2, 0.5, 0.8, 0.9, 1.0) have been determined at 298 K by drop-solution calorimetry. The thermodynamic characteristics of Pr123 follow the trends of the trivalent-ion-based Ln123 compounds. The thermodynamic data for the (Y, Pr) 123 solid solutions show nonideal solution behavior, but no x-dependent valence instability. The superconducting critical temperatures and the enthalpies of oxidation of the (Y, Pr)123 solid solutions are linearly related.

Original languageEnglish (US)
Pages (from-to)1061-1064
Number of pages4
JournalJournal of Materials Research
Issue number5
StatePublished - May 1996
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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