Influence of the orthorhombic phase content on the dielectric and magnetic properties of YMnO3
Juan Pedro Andrés González
Ricardo López Antón
Juan Antonio González
Marco López de la Torre
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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.