Thanatep Phatungthane, Ratabongkot Sanjoom, Luiz F. Cotica, Gobwute Rujijanagul
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Abstract
BaFe0.5Ta0.5O3ceramics has been successfully prepared by a solid state reaction method and structural analysis revealed that single perovskite phase was obtained in the ceramic sample. Room temperature magnetodielectric and magnetoimpedance properties of ceramics were investigated. Variations in the dielectric permittivity, loss tangent and impedance were evident. This confirms that a room temperature magnetoelectric effect can be obtained in BaFe0.5Ta0.5O3 ceramics. Also, a higher grain boundary contribution than a grain contribution in the magnetoelectric effect was confirmed. The magnetoelectric voltage response as a function of Hbias suggested a room temperature nonlinear magnetoelectric coupling in BaFe0.5Ta0.5O3 ceramic.
期刊介绍：
While ceramics have traditionally been admired for their mechanical, chemical and thermal stability, their unique electrical, optical and magnetic properties have become of increasing importance in many key technologies including communications, energy conversion and storage, electronics and automation. Electroceramics benefit greatly from their versatility in properties including:
-insulating to metallic and fast ion conductivity
-piezo-, ferro-, and pyro-electricity
-electro- and nonlinear optical properties
-feromagnetism.
When combined with thermal, mechanical, and chemical stability, these properties often render them the materials of choice.
The Journal of Electroceramics is dedicated to providing a forum of discussion cutting across issues in electrical, optical, and magnetic ceramics. Driven by the need for miniaturization, cost, and enhanced functionality, the field of electroceramics is growing rapidly in many new directions. The Journal encourages discussions of resultant trends concerning silicon-electroceramic integration, nanotechnology, ceramic-polymer composites, grain boundary and defect engineering, etc.
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