J. Phys. IV France
Volume 123, March 2005
Page(s) 285 - 289

J. Phys. IV France 123 (2005) 285-289

DOI: 10.1051/jp4:2005123051

On the substitution of bismuth by antimony in the system Bi-Sr-Ca-Cu-O

F. El Metmati1, M. Mansori2, A. Tazi3, L. Badrour1 and A. Bendriss1

1  LPCM F.S., Université Chouaïb Doukkali, Dépt. de Chimie, BP. 20, El Jadida, Maroc
2  F.S.T. Guéliz, Université Caddi Ayyad, Marrakech, Maroc
3  F.S. Aïn-Chok, Université Hassan II, Casablanca, Maroc

This work concerns the results obtained during attempts of substitution of bismuth by antimony in superconductors Bi-cuprates family. The samples, prepared by dry way, from oxides and carbonates of the corresponding elements, are characterized by IR spectroscopy, X ray diffraction and differential thermal analysis. In every case, two domains appear:

- for antimony concentration lower than 50 %, the main phase is isotype with the yellow phase Bi2Sr3CaO7.

- for a concentration between 50% and 100%, we systematically obtain a perovskite isotype with Sr1.45Sb0.55O $_{3\hbox{-}{\rm y}}$

© EDP Sciences 2005