单磁场驱动的Tb1-xDyxFe2-y/Pb(Zr,Ti)O3三层膜磁电效应

研究了Tb_1-xDy_xFe_2－y (TDF)与锆钛酸铅(PZT)三层膜样品的制备和在单一直流磁场驱动下的磁电(ME)效应. 在该系列三层膜样品中测量到了巨大的ME耦合效应. 所得实验结果与同种样品在两磁场驱动下的ME效应完全不同. 这可能预示了某些新的物理内容. 该技术可简化ME效应在某些实际应用中的复杂度. 关键词： 1-xDy_xFe_2－y')" href="#">Tb_1-xDy_xFe_2－y PZT 单磁场 ME效应     

单磁场驱动的Tb1-xDyxFe2-y/Pb(Zr,Ti)O3三层膜磁电效应

研究了Tb1-xDyxFe2-y(TDF)与锆钛酸铅(PZT)三层膜样品的制备和在单一直流磁场驱动下的磁电(ME)效应.在该系列三层膜样品中测量到了巨大的ME耦合效应.所得实验结果与同种样品在两磁场驱动下的ME效应完全不同.这可能预示了某些新的物理内容.该技术可简化ME效应在某些实际应用中的复杂度.     

Magnetoelectric Coupling in Bilayers of Pb（Zr, Ti）O3 Epoxy and Hot Pressed Manganite Perovskite

The synthesis and magnetoclectric （ME） characterization of bilayers of Pb（Zr, Ti）O3 （PZT） and hot pressed manganite perovskite La0.7Sr0.3MnO3 （LSMO） are discussed. Very strong ME interactions are measured for the bilayers. The bilayers exhibit superior ME coupling compared to thick-film composites prepared by tape casting process. Data of the ME voltage coefficient have been obtained as functions of bias magnetic field H, temperature and frequency. The transverse coupling is stronger than the longitudinal interactions and a maximum in the ME voltage coefficient is measured at 225K. The frequency dependence of the ME voltage coefficient reveals a peak at the electromechanical resonance due to radial modes.