Influence of the orthorhombic phase content on the dielectric and magnetic properties of YMnO3

Here, we report on the dielectric and magnetic properties of polycrystalline samples of YMnO3 where the ratio between both orthorhombic (o-YMO) and hexagonal (h-YMO) phases has been controlled by means of appropriate sintering treatments. Interestingly, we observe that the dielectric behavior is dom...

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Bibliographic Details
Published in:Journal of applied physics 2019-12, Vol.126 (22)
Main Authors: Sánchez-Pérez, M., Dura, O. J., Andrés, J. P., López Antón, R., Gonzalez, J. A., López de la Torre, M. A.
Format: Article
Language:English
Subjects:
Applied physics
Dielectric properties
Ferromagnetism
Magnetic properties
Magnetism
Orthorhombic phase
Polycrystals
Sintering
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Summary:Here, we report on the dielectric and magnetic properties of polycrystalline samples of YMnO3 where the ratio between both orthorhombic (o-YMO) and hexagonal (h-YMO) phases has been controlled by means of appropriate sintering treatments. Interestingly, we observe that the dielectric behavior is dominated by the presence of the metastable o-YMO phase, even though its amount remains as a minority phase. However it also influences the magnetic behavior for sintering temperatures below 1000 °C, and in addition, a weak ferromagnetic contribution is always detected in our polycrystalline samples regardless of the o-YMO content.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.5125217