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Journal of Materials Science
Erschienen in: Journal of Materials Science 1/2015

01.01.2015 | Original Paper

Influence of Al doping in LaCoO3 on structural, electrical and magnetic properties

verfasst von: Aswin V., Pramod Kumar, Pooja Singh, Anurag Gupta, S. Rayaprol, Anjana Dogra

Erschienen in: Journal of Materials Science | Ausgabe 1/2015

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Abstract

We report investigations on polycrystalline LaCo1−x Al x O3 (x = 0–0.9) bulk samples. The solid state synthesized samples showed a coexistence of rhombohedral and monoclinic phases in the intermediate concentrations (0.2 ≤ x ≤ 0.5) and pure rhombohedral phase otherwise. The observed effect of Al doping on dc transport has been analysed on the basis of small polaron hopping mechanism. The magnetisation results presented give evidence of weak ferromagnetism and anomalous temperature dependence of coercivity which we associate to the canting of the localised high-spin Co(III) and anti-symmetric exchange interactions at low temperatures.
Vorheriger Artikel Evaluation of the effects of treatment factors on the properties of bio-apatite materials
Nächster Artikel Microstructures resulting from the interaction between ferrite recrystallization and austenite formation in dual-phase steels

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Metadaten
Titel
Influence of Al doping in LaCoO3 on structural, electrical and magnetic properties
verfasst von
Aswin V.
Pramod Kumar
Pooja Singh
Anurag Gupta
S. Rayaprol
Anjana Dogra
Publikationsdatum
01.01.2015
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 1/2015
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-014-8595-3

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