Electric field and temperature-induced phase transition in Mn-doped Na1/2Bi1/2TiO3-5.0 at.%BaTiO3 single crystals investigated by micro-Raman scattering

2014 ◽  
Vol 104 (14) ◽  
pp. 142902 ◽  
Author(s):  
Chao Chen ◽  
Haiwu Zhang ◽  
Hao Deng ◽  
Ting Huang ◽  
Xiaobing Li ◽  
...  
CrystEngComm ◽  
2015 ◽  
Vol 17 (45) ◽  
pp. 8664-8670 ◽  
Author(s):  
Wenhui He ◽  
Qiang Li ◽  
Nengneng Luo ◽  
Yiling Zhang ◽  
Qingfeng Yan

Temperature-dependent domain configurations were studied for both unpoled and poled [110]C-oriented 0.63Pb(Mg1/3Nb2/3)O3–0.37PbTiO3 (PMN–0.37PT) single crystals by polarized light microscopy (PLM).


2000 ◽  
Vol 239 (1) ◽  
pp. 125-131 ◽  
Author(s):  
T. Runka ◽  
M. Kozielski ◽  
M. Drozdowski ◽  
L. Szczepańska

2019 ◽  
Vol 61 (4) ◽  
pp. 703
Author(s):  
Л.С. Камзина ◽  
Л.А. Кулакова ◽  
H. Luo

AbstractThe time changes of permittivity, damping and velocity of sound are studied for PbFe_0.5Nb_0.5O_3 and PbFe_0.5Nb_0.5O_3–7PbTiO_3 single crystals in the electric fields of 0 < E < 6 kV/cm. The room-temperature local symmetry of these compounds is shown to be rather more monoclinic than rhombohedral, which is typical of other similar systems. No abrupt sound attenuation anomalies are observed upon the phase transition into the ferroelectric phase in the electric field. The effects seem to be far from the crystal symmetry changes and are attributed to the gradual transition of near-range monoclinic domains into long-range monoclinic domains, as well as to the emergence of the ferroelectric phase. The polarized phase induced in the electric field is only partially stable.


2006 ◽  
Vol 320 ◽  
pp. 147-150
Author(s):  
Keisuke Yokoh ◽  
Song Min Nam ◽  
Hirofumi Kakemoto ◽  
Takaaki Tsurumi ◽  
Hirohiko Kumagai ◽  
...  

For potassium niobate (KNbO3) single crystal, the 31 resonators with the highest piezoelectric constant d31 were designed using transformation of axis. We confirmed that the engineered domain configurations with maximum d31 of –55.1 pC/N was caused by a combination between two polarization with polar directions along [101]c and [-101]c directions. Moreover, if there are larger piezoelectric constants from domain wall region, we can expect the much higher piezoelectric properties. To induce the above domain configuration, a new poling method using patterning electrode was investigated. In this study, the two methods on the basis of temperature-induced phase transition at 207 °C and electric-field-induced phase transition at room temperature were investigated.


CrystEngComm ◽  
2018 ◽  
Vol 20 (35) ◽  
pp. 5169-5179 ◽  
Author(s):  
Yaming Zhou ◽  
Qiang Li ◽  
Chao Xu ◽  
Fangping Zhuo ◽  
Donglin Liu ◽  
...  

Anisotropic temperature–electric field phase diagrams are established based on microscopic domain observation and macroscopic dielectric and strain properties.


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