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No.4(pp.151-207)

Home > Issues > Volume 11 (2006) > No.4(pp.151-207)

Dielectric and Magnetic Properties of BaTiO₃-LaMnO₃Composites

Journal of Magnetics, Volume 11, Number 4, 31 Dec 2006, Pages 164-166

N.G. Kim(Department of Physics, Inha University), Y.S. Koo(Department of Physics, Inha University), J.H. Jung*

(Department of Physics, Inha University)

Abstract

We have investigated the dielectric and magnetic properties of ferroelectric-antiferromagnetic BaTiO₃-LaMnO₃composite with changing relative mole percents. Due to high sintering temperature, i.e.1150℃, the Ba ion in BaTiO₃seems to diffuse into LaMnO₃; resulting in BaTiO₃-LaMnO₃ferroelectric-ferromagnetic composite. At room temperature, 0.9BaTiO₃-0.1LaMnO₃composite exhibits considerable magnetization (~0.7emu/g a^½2000 Oe) and low coercive field (~5 Oe). Also it exhibits high dielectric constant (~560) and low loss (~0.08) at 10 kHz. This result may imply that BaTiO₃-LaMnO₃could be suitable for a low leakage multiferroic composite.

Keywords: multiferroic;BaTiO_3-LaMnO_3 ; ferroelectric-ferromagnetic composite; low leakage

DOI:

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