SrLaGaO4-SrLaAlO4 Solid Solutions - Substrate Materials with Tuneable Lattice Parameter for Various HTSC Compounds
M. Berkowski, J. Fink-Finowicki and E. Mojaiskaia
Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland
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The increase in Τc for high temperature superconductors can be realized, among others, by appropriate substrate/film combinations. SrLaGaO4-SrLaΑlO4 solid solutions were grown by the Czochralski method. The already achieved results allow to obtain single crystals of SrLaΑl1-xGaxO4 with lattice constant a in the range from 0.3754 to 0.3775 nm, and SrLaGa1-xΑlxO4 crystals with lattice constant a in the range from 0.3843 to 0.3826 nm. Electron-probe microanalysis along obtained single crystals was used for determination of segregation coefficient between aluminum and gallium ions.
DOI: 10.12693/APhysPolA.92.182
PACS numbers: 61.16.-d, 61.50.Νw, 81.10.Fq, 64.75.+g