Title :
Magnetoelectric Properties of CoFe2O4-BaTiO3 Core-Shell Structure Composites
Author :
Giap, V. ; Groessinger, R. ; Tuertelli, R. Sato
Author_Institution :
Vienna Univ. of Technol., Vienna
Abstract :
This paper reports the magnetoelectric properties of CoFe2O4-BaTiO3 core-shell structure composites. Crystalline structures of the composites were investigated by X-ray diffractometer (XRD). Magnetic properties were studied using a pulse field magnetometer. Magnetostriction was measured using strain gauge method. AC susceptibility and ME coefficient were investigated using lock-in technique in which AC fields with frequencies from 1 Hz to 4 kHz and amplitudes from 0.1 Oe to 20 Oe superimposed onto a DC magnetic field up to 6500 Oe were employed. All measurements were carried out at room temperature and ambient pressure.
Keywords :
X-ray diffraction; barium compounds; cobalt compounds; composite materials; crystal structure; magnetic susceptibility; magnetoelectric effects; magnetometers; magnetostriction; AC susceptibility; CoFe2O4-BaTiO3; DC magnetic field; X-ray diffractometer; XRD; core-shell structure composites; crystalline structures; frequency 1 Hz to 4 kHz; lock-in technique; magnetoelectric properties; magnetostriction; pulse field magnetometer; strain gauge method; temperature 293 K to 298 K; Crystallization; Magnetic cores; Magnetic field induced strain; Magnetic field measurement; Magnetic properties; Magnetometers; Magnetostriction; Strain measurement; X-ray diffraction; X-ray scattering;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.374861
