Author:
Liang Xiao-Lin ,Gong Yue-Qiu ,Liu Zhi-Zhuang ,Lü Ye-Gang ,Zheng Xue-Jun ,
Abstract
A nonlinear thermodynamic theory is used to investigate the effect of external electric field on the phase transitions of Pb(Zr0.3Ti0.7)O3(PZT) thin films epitaxially grown on dissimilar cubic substrates. The "misfit strain-external electric filed" phase diagram and the relationship between electirc filed and polarization are constructed for PZT thin films. The external electric field can transform the monoclinic r phase into the c phase,when its value reaches 186 kV/cm for PZT thin film grown on the SrTiO3 substrate. On the other hand,the domain switching of PZT thin film is investigated experimentally by scanning probe microscopy(SPM) via varying the applied polarizing electric field. The piezo-phase images reveal that most ferroelectric domains are clearly detectable. In the r phase,the domains can be reversed into the direction of polarization of the c phase,when the applied electric field increases to 200 kV/cm,which is close to the theoretical value (186 kV/cm).
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Reference17 articles.
1. Scott J F 1996 Ferroelectrics 183 51
2. Wang L H,Yu J,Wang G Y,Gao J X, Zhao S L 2008 Acta. Phys. Sin. 57 1207 (in Chinese) [王龙海、于 军、王耕波、高峻雄、赵素玲 2008 物理学报 57 1207]
3. Wu X M,Lu X M,Chen A P,Yin Y,Ma J, Li W, Kan Y, Qian D, Zhu J S 2005 Appl. Phys. Lett. 86 092904
4. Zhang D M,Yan W S,Zhong Z C, Yang F X, Zheng K Y, Li Z H 2004 Acta. Phys. Sin. 53 1316 (in Chinese) [张端明、严文生、钟志成、杨风霞、郑克玉、李智华 2004 物理学报 53 1316]
5. BAN G Z,Alay S P 2002 J. Appl. Phys. 91 9288
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