Crystallographic Study of Mixtures La1+xBa2-xCu3Oy (x=0,0.2,0.4,0.6) after annealing at 860°C

Details Crystallographic Study of Mixtures La1+xBa2-xCu3Oy (x=0,0.2,0.4,0.6) after annealing at 860°C Crystallographic Study of Mixtures La1+xBa2-xCu3Oy (x=0,0.2,0.4,0.6) after annealing at 860°C

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..899..657s&link_type=abstract

SIXTH INTERNATIONAL CONFERENCE OF THE BALKAN PHYSICAL UNION. AIP Conference Proceedings, Volume 899, pp. 657-657 (2007).

Physics

La-Based Cuprates, X-Ray Diffraction, Methods Of Crystal Growth, Physics Of Crystal Growth, Structure Of Specific Crystalline Solids

Scientific paper

Four powder mixtures with chemical formula La1+xBa2-xCu3Oy was prepared. The mixtures were heated in free atmosphere, at temperature 850°C for 60h and then at 860°C for 40h. XRD measurements were obtained with CuKa radiation. The samples were characterized with the help of the PDF and refined, using the Rietveld's ``Powder Profile Analysis''. Four phases, same for all the samples, were found: (La,Ba)2CuO4, BaCuO2, LaBa2Cu3O7-d, and BaCO3. The percentages of the tour phases are changed, as the x quantity increases, and varied from 38, 25, 18, 19%, for x=0, to 69, 14, 7, 10%, for x=0.6, respectively.

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