NEUTRON-DIFFRACTION STUDIES OF CA-PR DOPED YBA2CU3O7-DELTA
1993 (English)In: Physica. C, Superconductivity, ISSN 0921-4534, Vol. 205, no 1-2, 105-110 p.Article in journal (Refereed) Published
We have performed neutron powder diffraction on samples in a series Y1-2xCaxPrxBa2Cu3O7-delta, with x=0.0, 0.1 and 0.2, and analyzed the data with the Rietveld refinement method. Small changes were observed in atomic bond distances when the amount of Ca-Pr was increased. In general, these changes could qualitatively be viewed as the sum of effects from the Ca and Pr substitutions in YBa2Cu3O7-delta samples. Analyses of the distance between the superconducting CuO2 Planes suggest that the Pr ions in the Ca-Pr substituted samples have an effective valence close to + 4.
Place, publisher, year, edition, pages
1993. Vol. 205, no 1-2, 105-110 p.
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:kth:diva-50007DOI: 10.1016/0921-4534(93)90174-OISI: A1993KH99200013OAI: oai:DiVA.org:kth-50007DiVA: diva2:460850