Magnetic Dielectric and Magnetoelectric Properties of Magnetoelectric Nano-composites xCoAl(0.2)Fe(1.8)O(4)+(1-x)BaTiO3

作者：Gai Zhen-Tao^*; Yu Li-Ming; Zhou Yun; Zhao Xin-Luo; Zhang Jin-Cang

来源：Journal of Inorganic Materials, 2010, 25(11): 1155-1158.

DOI：10.3724/SP.J.1077.2010.01155

• dielectric property
• magnetic property
• magnetoelectric voltage coefficient

Magnetoelectric nano-composites xCoAl(0.2)Fe(1.8)O(4)+(1-x)BaTiO3 were prepared by Sol-Gel method. The presence of perovskite BaTiO3 and spinel CoAl0.2Fe1.8O4 in the sintered composites was proved by XRD patterns. SEM images showed that particle size of composite was uniform. The magnetic property of composites was tested by magnetic hysteresis loops and dispersion of dielectric constant was explained with Koops two layer inhomogeneous dielectric structure model. The maximum value of magnetoelectric voltage coefficient viz. 1.075x10(-2)V/A was obtained for 0.20CoAl(0.2)Fe(1.8)O(4)+0.80BaTiO(3) composite at the DC magnetic bias field of 1.35x10(5)A/m.

• 出版日期2010-11
• 单位上海大学; 中国计量大学