Synthesis of Magnetoresistive Manganites La 0.67 Ca 0.33 MnO 3 and La 0.60 Y 0.07 Ca 0.33 MnO 3 . -Stepwise heating of the reaction mixture of the corresponding metal oxolates, obtained by the co-precipitation method, at 950 β’ C and 1200 β’ C in an oxygen atmosphere provides the title manganites wit
Structure and Magnetic Properties of Lanthanum and Calcium-Deficient La0.5Ca0.5MnO3 Manganites.
β Scribed by I. Walha; H. Ehrenberg; H. Fuess; A. Cheikhrouhou
- Publisher
- John Wiley and Sons
- Year
- 2007
- Weight
- 12 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0931-7597
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Ca 4Β±x Ni x IrO 6 (x = 0.25, 0.5) crystallizes with trigonal (rhombohedral) symmetry in the space group R3c, Z = 6, for Ca 3.75 Ni 0.25 IrO 6 a = 9.3013(1) A Γ , c = 11.1554(1) A Γ ; for Ca 3.5 Ni 0.5 IrO 6 a = 9.2723(1) A Γ , c = 11.0825(1) A Γ . Ca 3.75 Ni 0.25 IrO 6 and Ca 3.5 Ni 0.5 IrO 6 are is