Structural and surface characterization of perovskite-type oxides; influence of A and B substitutions upon oxygen binding energy
β Scribed by C.-M Pradier; C Hinnen; K Jansson; L Dahl; M Nygren; A Flodstrom
- Book ID
- 111533658
- Publisher
- Springer
- Year
- 1998
- Tongue
- English
- Weight
- 175 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0022-2461
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Four cuprate perovskites with the general formula A 2 CuBO 6 (A β«Ψβ¬ Ba, Sr; B β«Ψβ¬ W, Te) were synthesized and the structural and the magnetic properties were investigated. Among four samples, perovskite Ba 2 CuTeO 6 was formed only under high pressure. All the samples were tetragonally distorted B-s
The hexagonal perovskite-type oxides A x BO 3 (A β«Ψβ¬ Ca, Sr, Ba; B β«Ψβ¬ Co, Ni) consist of (BO 3 ) chains made up of face-sharing BO 6 octahedra and BO 6 trigonal prisms. On the basis of molecular orbital calculations for their structural building blocks we examined why the transition metal atoms in