In this paper we report the synthesis of a new phase in the La+Ti+Al+O system. A starting composition La 2 TiAlO 6.5 and synthesis conditions of 14003C under H 2 /Ar (5%/95%) resulted in a perovskite with a monoclinic (I 2/a; a ؍ 7.686, b ؍ 5.435, c ؍ 5.424 A s , ؍ 90.203) cell. Although it
Structure determination of a new perovskite phase in the BaKBiNaO system
✍ Scribed by C. Chaillout; J. Durr; C. Escribe-Filippini; T. Fournier; J. Marcus; M. Marezio
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 438 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0022-4596
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In the Lal\_xSrxCuO3\_y system, a new nonstoichiometric perovskite solid solution was found to exist in a narrow range of O.200<~ x <~ 0.250. This perovskite phase has a tetragonal distortion based on a Jahn-Teller effect of the copper ion. The lattice parameters are closely related to those of the
The synthesis and characterization of some new phases in the title system which have a perovskite or closely related structure are reported. Two solid solutions with the same cationic stoichiometry and different oxygen content, Sr,~xCa,,,+,Bi,.,O,-, with 0 5 x 5 0.5 and S = 0 or 0.4-0.7, have been f