Signatures of nearly invisible defects in PrBa2Cu3O7 and Pr2-zCezSr2Cu2NbO10

Howard A. Blackstead, John D. Dow, Israel Felner, William B. Yelon

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

PrBa and PrSr are the defects responsible for the suppression of superconductivity in PrBa2Cu3O7 and in Pr1.5Ce0.5Sr2Cu2NbO10, respectively, and are difficult to detect with conventional techniques. Even neutron scattering has difficulty detecting PrBa because the scattering lengths of Pr and Ba are so similar. In this paper, we point out how these alkaline-earth-site Pr defects can be readily detected indirectly in fully oxygenated samples, using measurements of the c-axis lengths.

Original languageEnglish
Article number094517
Pages (from-to)945171-945174
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume63
Issue number9
DOIs
StatePublished - 2001

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