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Título: | Mn(3−x)ZnxO4 spinel phases in the Zn–Mn–O system |
Autor: | Peiteado, Marco CSIC ORCID ; Sturm, S.; Caballero Cuesta, Amador CSIC ORCID; Makovec, D. | Palabras clave: | Manganese-doped ZnO Binary oxides Spinels Phase transformations EELS |
Fecha de publicación: | 22-may-2008 | Editor: | Elsevier | Citación: | Acta Materialia 56(15): 4028-4035 (2008) | Resumen: | The thermal evolution of the Zn–Mn–O system in air was studied by X-ray diffraction, transmission electron microscopy–energy dispersive spectroscopy and electron energy loss spectroscopy. The obtained results suggest that this evolution involves the formation of different Mn(3−x)ZnxO4 spinel-type phases. With increasing temperature these spinels experience phase transformations which are found to be induced by the Mn(IV) to Mn(III) reduction process. This last cation is an active Jahn–Teller ion which leads to an appreciable distortion of the Mn(3−x)ZnxO4 spinel structure, from a cubic symmetry at low temperatures to highly distorted tetragonal symmetries at high temperatures. | Descripción: | 8 pages, 9 figures, 3 tables.-- Printed version published Sep 2008. | Versión del editor: | http://dx.doi.org/10.1016/j.actamat.2008.04.024 | URI: | http://hdl.handle.net/10261/13484 | DOI: | 10.1016/j.actamat.2008.04.024 | ISSN: | 1359-6454 |
Aparece en las colecciones: | (ICV) Artículos |
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