Superconductivity and magnetism in the system [Y<inf>1-x</inf>Ca<inf>x</inf>]SrBaCu<inf>2.80</inf>(PO<inf>4</inf>)<inf>0.20</inf>O<inf>y</inf> with 0.10 ≤ x ≤ 0.40

J. C. Gonzalez Gonzalez, A. Bustamante Dominguez, D. Landinez Tellez, J. Albino Aguiar

Research output: Contribution to journalArticlepeer-review


We present the composite [Y1-xCax]SrBaCu2.80(PO4)0.20Oy (0.10 ≤ x ≤ 0.40) prepared at normal temperature and pressure conditions. X-ray diffraction patterns show that samples containing Ca crystallize in a 123 tetragonal structure with small amounts of impurities. The Rietveld method was used to refine the lattice constants. Ac and dc susceptibility measurements using a SQUID show that the materials are superconductors independent of Ca content. In the normal region the measurements of χDC show a typical Curie-Weiss law behavior.
Original languageAmerican English
JournalPhysica C: Superconductivity and its Applications
StatePublished - 1 Nov 2000


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