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Effects of alternating magnetic field on magnetoelectricity of sputtered TbFe2/PZT/TbFe2 laminate composite

P. HOMTHONG1, P. JANTARATANA1, C. SIRISATHITKUL2,*

Affiliation

  1. Magnetic Materials Speciality Research Unit, Department of Physics, Kasetsart University, Bangkok 10900, Thaila
  2. Molecular Technology Research Unit, School of Science, Walailak University, Nakon Si Thammarat, 80161, Thailand

Abstract

Both magnitude and frequency of alternating magnetic field (Hac) affect the magnetoelectric (ME) effect in a sputtered TbFe2/PZT/TbFe2 laminate composite. With the increase in Hac from 5 to 20 Oe, the magnitude of ME susceptibility (the ratio of induced electric polarization to Hac) is decreased indicating an insensitive polarization to the variation of Hac in this regime. When the frequency of Hac is lower than 2.5 kHz, the ME susceptibility is increased with increasing bias magnetic field (Hdc) up to 280 Oe. With further increases in Hdc, the ME susceptibility drops to a saturation value. By contrast, the ME susceptibility in the case of Hac beyond 2.5 kHz is monotonically increased by the increase in Hdc up to 4500 Oe. At 2.5 kHz, the ME effect has a linear variation with the Hdc ranging from 800 Oe to 4500 Oe..

Keywords

Magnetoelectric effect, Laminate composite, Magnetron sputtering, TbFe2, PZT.

Citation

P. HOMTHONG, P. JANTARATANA, C. SIRISATHITKUL, Effects of alternating magnetic field on magnetoelectricity of sputtered TbFe2/PZT/TbFe2 laminate composite, Optoelectronics and Advanced Materials - Rapid Communications, 7, 1-2, January-February 2013, pp.100-103 (2013).

Submitted at: Aug. 5, 2012

Accepted at: Feb. 20, 2013