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New Perovskite Based Structures in the Bi-Sr-O System

Published online by Cambridge University Press:  26 February 2011

Bokhimi and
M. Portilla
Bokhimi
Affiliation:
Instituto de Fisica and Facultad de Quimica, Universidad Nacional Autónoma de México, a.p. 20–364, 01000México D. F., México.
M. Portilla
Affiliation:
Instituto de Fisica and Facultad de Quimica, Universidad Nacional Autónoma de México, a.p. 20–364, 01000México D. F., México.
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Abstract

We report one amorphous and four new crystalline phases in the Bi-Sr-0 system. The structure of three of the crystalline phases was identified. The Br10Bi6O24-y phase, which is cubic with space group Fm3m and cell parameter a = 0.8471(1) nm. The SreBi10O27-y phase, which is tetragonal with the space group I/mmm, and cell parameters a = 0.6007(1), c = 0.8376(1) nm. The SreBi10O27-y phase, which is tetragonal with space group I/mmm and cell parameters a = 1.3221(1), c = 0.4249(1) nm. We show that in the crystalline structures Sr and Bi occupy equivalent sites.

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References

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