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Neutron-diffraction studies of Ca-Pr doped YBa2Cu307-delta
KTH, Superseded Departments (pre-2005), Physics. (Fasta tillståndets fysik)ORCID iD: 0000-0002-9858-6235
KTH, Superseded Departments (pre-2005), Physics. (Fasta tillståndets fysik)
Institutet för kemi, Uppsala Universitet.
1993 (English)In: Physica. C, Superconductivity, ISSN 0921-4534, E-ISSN 1873-2143, Vol. 205, no 1-2, p. 105-110Article in journal (Refereed) Published
Abstract [en]

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, p. 105-110
Keywords [en]
Superconductivity, neutron diffraction
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:kth:diva-50007DOI: 10.1016/0921-4534(93)90174-OISI: A1993KH99200013OAI: oai:DiVA.org:kth-50007DiVA, id: diva2:460850
Note

QCR 20180227

Available from: 2011-12-01 Created: 2011-12-01 Last updated: 2018-02-27Bibliographically approved

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