MULTIFERROISM AND MAGNETOELECTRIC COUPLING IN NANO-MICROSCALE LEAD-FREE COMPOSITE BY 0.3Co-FERRITE AND 0.7(K0.5Na0.5)NbO3-BASED FERROELECTRIC MATRIX

作者：Zhou, Yun^*; Wang, Xinyan; Li, Li; Su, Yuling; Zhang, Jincang; Cao, Shixun

来源：International Journal of Modern Physics B, 2011, 25(32): 4481-4488.

DOI：10.1142/S0217979211059115

• Multiferroic composite
• magnetic property
• magnetoelectric effect

Nontoxic lead-free multiferroic composites are synthesized by incorporating the dispersed 0.3CoFe(2)O(4) (CFO) ferromagnetic nanoparticles into 0.7(K0.5Na0.5)NbO3-LiSbO3 (KNN-LS5.2) ferroelectric micromatrix. The multiferroicity of the composite can be verified by polarization-electric field hysteresis loop and magnetic hysteresis loop. The composite exhibits excellent magnetic properties. A dilution effect is observed in magnetic hysteresis loops. The field dependence of ME voltage coefficient is given as a function of magnetic field from -4 kOe to 4 kOe with a maximum magnetoelectric voltage coefficient of 10.7 mV . cm(-1) . Oe(-1) at the frequency of 1 kHz. It is a very high value in the lead-free magnetoelectric composites system for the potential use on multifunctional devices.

• 出版日期2011-12-30
• 单位中国计量大学; 上海大学