Monolithic magnetoelectric heterostructure with enhanced ferroelectric and piezoelectric properties and tunable magnetic properties

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• 作者：Zhiguang Wang ; Yanxi Li ; Wenwei Ge ; Ravindranath Viswan ; Jiefang Li ; Dwight Viehl
• 关键词：Magnetoelectric ; Metglas ; Textured thin film
• 刊名：Materials Letters
• 出版年：15 December, 2013
• 年：2013
• 卷：113
• 期：Complete
• 页码：159-162
• 全文大小：1200 K

文摘

This paper details fabrication of Pb(Zr_0.6Ti_0.4)O₃ (PZT) layer on Metglas (MG) foils鈥攁 magnetoelectric monolithic herterostructure with reduced fatigue and enhanced ferroelectric and piezoelectric properties. Polarization-electric field measurements revealed reduced fatigue for PZT-MG monoliths due to reduced clamping: remnant polarization (2P_r) increased from 24 碌C/cm² to 91 碌C/cm² after the first 5脳10⁵ cycles. In comparison, PZT on SrTiO₃ (STO) exhibited a monotonous decrease in P_r. Piezoelectric measurements demonstrated a d₃₃ value two times larger for PZT/MG than PZT/STO. Finally, magnetic hysteresis loop measurements showed a dramatic increase of the saturation magnetic field for PZT/MG, due to elastic strain at the interface.