Infrared spectra of mixed oxides of the type Ln₂BaCoO₅
Ln₂BaMO₅ oxides (Ln = trivalent lanthanide; M = Co, Ni, Cu, Zn) present very interesting structural, magnetic and spectroscopic properties and, when MII= Cu, they are generated as byproducts or impurities (the so-called "green phases") during the syntheses of the LnBa₂Cu₃0₇_δ-type supercon...
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| Autores principales: | , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
1996
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/142707 |
| Aporte de: |
| Sumario: | Ln₂BaMO₅ oxides (Ln = trivalent lanthanide; M = Co, Ni, Cu, Zn) present very interesting structural, magnetic and spectroscopic properties and, when MII= Cu, they are generated as byproducts or impurities (the so-called "green phases") during the syntheses of the LnBa₂Cu₃0₇_δ-type superconductors.
Despite their identical stoichiometries, the Ln₂BaMO₅ materials belong to four different structural types, depending on the LN(III) and/or M(II) cations present in the lattices. Besides, during the past few years, it has also been shown that some of them present temperature dependent dimorphism. |
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