Preparation, crystal structure, and vibrational spectra of Perovskite-type mixed oxides LaM{sub y}M{sub 1-y}{prime}O{sub 3} (M, M{prime} = Mn, Fe, Co)
- Changchun Inst. of Applied Chemistry (China)
Three series of samples LaMn{sub y}Co{sub 1-y}O{sub 3{plus_minus}{lambda}} (y = 0.0 to 1.0) with Perovskite structure were prepared by an explosion method different from the generally used ceramic techniques. The variation of crystal structure, the infrared spectra, and the relationship between them were discussed in detail. The change of infrared absorption reflects the change of the crystal structure and the mixing of transition metals on B sites significantly influences the strength of the B-O bond. These influences are attributed to geometrical effects for LaFe{sub Y}Mn{sub 1-y} O{sub 3{plus_minus}{lambda}} and LaFe{sub y}Co{sub 1-y}O{sub 3{plus_minus}{lambda}} and to electronic effects for LaMn{sub y} Co{sub 1-y}O{sub 3{plus_minus}{lambda}}.
- OSTI ID:
- 518206
- Journal Information:
- Journal of Solid State Chemistry, Vol. 112, Issue 1; Other Information: PBD: Sep 1994
- Country of Publication:
- United States
- Language:
- English
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