Abstract:Spinel vanadates possess rich physics arising from the interaction among spin, orbital and lattice degrees of freedom. We report the dielectric properties of polycrystalline Fe 1.8 V 1.2 O 4 . A thermally activated dielectric relaxation appeared in low temperature due to the inhomogeneous conductivity between grains and grain boundaries. We found an artificial ferroelecticity in this sample. An abnormal frequency-independent dielectric peak appeared at room temperature when the samples were measured during war… Show more
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