Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 21    No. 11    November 2011

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Frequency-dependent magnetoelectricity of CoFe2O4−BaTiO3
particulate composites
Atchara KHAMKONGKAEO1, Pongsakorn JANTARATANA 2, Chitnarong SIRISATHITKUL3,
Teerapon YAMWONG4, Santi MAENSIRI5

1. Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand;
2. Department of Physics, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand;
3. Magnet Laboratory, School of Science, Walailak University, Nakhon Si Thammarat 80161, Thailand;
4. National Metals and Materials Technology Center (MTEC), Thailand Science Park, Pathumthani 12120, Thailand;
5. School of Physics, Institute of Science, Suranaree University of Technology,
Nakhon Ratchasima 30000, Thailand

Abstract:CoFe2O4−BaTiO3 particulate composites were prepared by wet ball milling method, their magnetoelectric (ME) effect was studied as a function of their constituents and modulation frequency. The results show that the ME coefficient increases as a function of modulation frequency from 400 to 1000 Hz and the ME characteristics of ME curves are also modified because the electrical conductivity of the CoFe2O4 phase is sensitive to the increase in frequency between 400 and 1 000 Hz. The third phase Ba2Fe2O5 formed during the sintering tends to reduce the ME effect.

 

Key words: ferrite; ferroelectric; CoFe2O4−BaTiO3; magnetoelectric effect; modulation frequency

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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