Magnetoelectric and converse magnetoelectric responses in Tb_xDy_(1-x)Fe_(2-y) alloy & Pb(Mg_(1/3)Nb_(2/3))_(1-x)Ti_xO_3 crystal laminated composites  

作　　者：JIA YanMin LUO HaoSu OR Siu Wing WANG YaoJin CHAN Helen L W 

机构地区：[1]State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China [2]Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China

出　　处：《Chinese Science Bulletin》2008年第14期2129-2134,共6页

基　　金：Supported by the Hi-Tech Research and Development Program of China (Grant No. 2006AA03Z107);National Natural Science Foundation of China (Grant Nos. 50432030, 50777065, 50602047);Scientific Innovation Program of the Chinese Academy of Sciences (Grant No. KGCX2-YW-111-7);Shanghai Municipal Gov-ernment (Grant No. 06DZ05016);Innovation Funds from Shanghai Institute of Ceramics of Chinese Academy of Sciences (Grant No. SCX0608);Research Grants Council of the HKSAR Government (PolyU 5255/03E and PolyU 5122/05E)

摘　　要：Measured results of magnetoelectric (ME) and converse magnetoelectric (CME) effects of TbxDy1-xFe2-y/ Pb(Mg1/3Nb2/3)(1-x)TixO3/TbxDy1-xFe2-y (TD/PMNT/TD) and PMNT/TD/PMNT laminated composites are pre- sented. ME effect was determined by measuring laminate voltage output under a Helmholtz-gener- ated AC field biased by a DC field (0―1 kOe) (1 Oe = 79.58 A/m). The CME effect was measured by re- cording the voltage induced in a solenoid encompassing the ME sample while exposed to a DC bias field and PMNT layer driven by a 10 V AC source. The ME and CME responses in the two laminated structure are linear. The highest values of ME coefficients in TD/PMNT/TD and PMNT/TD/PMNT com- posites are 384 mV/Oe and 158 mV/Oe, respectively, while the highest values of CME coefficients in the two composites are 118 mG/V and 162 mG/V (1 G=10-4 T), respectively.Measured results of magnetoelectric （ME） and converse magnetoelectric （CME） effects of TbxDy1-xFe2-y/ Pb（Mg1/3Nb2/3）（1-x）TixO3/TbxDy1-xFe2-y （TD/PMNT/TD） and PMNT/TD/PMNT laminated composites are presented. ME effect was determined by measuring laminate voltage output under a Helmholtz-generated AC field biased by a DC field （0-1 kOe） （1Oe = 79.58 A/m）. The CME effect was measured by recording the voltage induced in a solenoid encompassing the ME sample while exposed to a DC bias field and PMNT layer driven by a 10 V AC source. The ME and CME responses in the two laminated structure are linear. The highest values of ME coefficients in TD/PMNT/TD and PMNT/TD/PMNT composites are 384 mV/Oe and 158 mV/Oe, respectively, while the highest values of CME coefficients in the two composites are 118 mG/V and 162 mG/V （1 G=10^-4 T）, respectively.

关 键 词：磁电效应 压电性 复合材料 合金 晶体结构 

分 类 号：TG13[一般工业技术—材料科学与工程]