Electric field forced c -axis oriented growth of polar nanoregions and rapid switching of tetragonal domains in BNT-PT-PMN ternary system

2016 ◽  
Vol 36 (3) ◽  
pp. 515-525 ◽  
Author(s):  
Ruzhong Zuo ◽  
Feng Li ◽  
Jian Fu ◽  
Donggeng Zheng ◽  
Wanli Zhao ◽  
...  
2013 ◽  
Vol 1507 ◽  
Author(s):  
R. Wördenweber ◽  
T. Ehlig ◽  
J. Schubert ◽  
R. Kutzner ◽  
E. Hollmann

ABSTRACTThe ferroelectric properties of anisotropically strained SrTiO3 films are analyzed by detailed measurements of the complex dielectric constant as function of temperature, frequency, bias voltage and electric field direction. The strain induces a relaxor-ferroelectric phase that persists up to room temperature. However, transition temperature and ferroelectric properties strongly depend on the orientation of the electric field and therefore on the amount of structural strain in the given electric field direction. Frequency and time dependent relaxation experiments reveal the presence and properties of polar nanoregions with randomly distributed directions of dipole moments in the film.


1998 ◽  
Vol 47 (2) ◽  
pp. 239
Author(s):  
WU ZHUANG-CHUN ◽  
HU WEI-SHENG ◽  
LIU JUN-MING ◽  
WANG MU ◽  
LIU ZHI-GUO

2009 ◽  
Vol 66 ◽  
pp. 49-52 ◽  
Author(s):  
Hong Cheng Wang ◽  
Qi Ming Liu ◽  
Jin Shu Cheng

The polar glass-ceramics of 2.0SrO-1.0TiO2-2.9SiO2 system were prepared by the process of recrystallization with additional applied isothermal and electric field. The results showed that the glass-ceramics piezoelectric constant d33 was 12×10-12 C/N. The study of its oriented crystallization by SEM and XRD indicated that Sr2TiSi2O8 crystal performed oriented growth, which was perpendicular to the glass surface and made it be orientally crystallized with the assisted the isothermal and electric field. The further experimental results showed that the additional electric field reduced the crystallization activation energy, which provided a force for the isothermal orientating crystallization process.


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