Abstract
Magneto-dielectric materials are a subject of potential interests in terms of basics research and new device applications. In this study, 0. 5BaTiO 3-0. 5MgFe 2O 4 composites with ferroelectric and soft magnetic properties, synthesized using wet chemical methods, were investigated for the possibility of controlling the dielectric properties by application of a magnetic field. Composite pellets were thermally treated in air at 950 to 1150 °C for 3 h, and their structural, magnetic and magneticdielectric properties were characterized. All the composites showed soft magnetic properties. The magnetic field was applied to composite pellets in the order of 200 to 400 Oe, and a variation in the dielectric constant was observed. Significant findings, such as an increase in the dielectric constant with increasing of magnetic field, were observed in the composite pellets. The increase in the dielectric constant with respect to the applied magnetic field was depicted as being an effect of increased magnetostriction in the magnetic phase.
Original language | English |
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Pages (from-to) | 1545-1549 |
Number of pages | 5 |
Journal | Journal of the Korean Physical Society |
Volume | 61 |
Issue number | 9 |
DOIs | |
State | Published - Nov 2012 |
Bibliographical note
Funding Information:This work was supported by the Korea Research Council of Fundamental Science and Technology (KRCF) through National Agenda Project.
Keywords
- Magneto-dielectric
- Magnetostriction
- Multiferroic composite
- Piezoelectric
- Soft magnetic