Magnetoelectric Properties of BaTiO3 – Co0.5Ni0.5Fe2O4 Composites Prepared by the Conventional Mixed Oxide Method

Nattakarn Pulphol; R. Muanghlua; Surasak Niemcharoen; Wisanu Pecharapa; Wanwilai C. Vittayakorn; Naratip Vittayakorn

doi:10.4028/www.scientific.net/AMR.802.22

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 802Magnetoelectric Properties of BaTiO3 –...

Magnetoelectric Properties of BaTiO₃– Co_0.5Ni_0.5Fe₂O₄ Composites Prepared by the Conventional Mixed Oxide Method

Abstract:

Multiferroics, which display simultaneous ferrimagnetic and ferroelectric properties, have been interesting recently because of their potentially significant applications in multifunctional devices such as magnetic resonance, drug delivery, high-density data storage, ferrofluid technology, etc. Composites combining BaTiO₃ with Co_0.5Ni_0.5Fe₂O₄ have influenced the interest of many researchers, due to their outstanding and distinguished character called magnetoelectric (ME). In this work, ferrimagnetic-ferroelectric composites of BaTiO₃ nanopowder and Co_0.5Ni_0.5Fe₂O₄ nanopowders were prepared by a conventional mixed oxide method. The multiferroic ceramics were compounded with the formula, (1-x)BaTiO₃-(x)Co_0.5Ni_0.5Fe₂O₄, in which x = 0, 0.05, 0.10, 0.20 and 0.35. All of the compositions were analyzed by an X-ray diffractometer (XRD) in order to reveal the phase of perovskite and spinal structure. Scanning electron microscopy (SEM) was used to examine the variation of morphology and grain size of the composited ceramics. The magnetism of all the ceramics was measured using a vibrating sample magnetometer (VSM). The results showed that microstructure and the amount of ferrite are related strongly with magnetization.

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Periodical:

Advanced Materials Research (Volume 802)

Pages:

22-26

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.802.22

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Online since:

September 2013

Authors:

Nattakarn Pulphol, R. Muanghlua, Surasak Niemcharoen, Wisanu Pecharapa, Wanwilai C. Vittayakorn, Naratip Vittayakorn

Keywords:

BaTiO₃, Co_0.5Ni_0.5Fe₂O₄, Conventional Mixed Oxide Method, Multiferroic

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