Relaxor ferroelectric phase transition and ac conduction in polycrystalline Gd0.55Ca0.45MnO3 at low temperature

Author(s):  
Pooja Pant ◽  
Harshit Agarwal ◽  
Suresh Bharadwaj ◽  
O.N. Srivastava ◽  
M.A. Shaz
2020 ◽  
Vol 8 (33) ◽  
pp. 11426-11440
Author(s):  
Xiao Wang ◽  
Baobao Qiao ◽  
Shaobo Tan ◽  
Weiwei Zhu ◽  
Zhicheng Zhang

Poly(vinylidene fluoride) (PVDF) based relaxor ferroelectric polymers show great potential for applications in transducers, sensors and artificial muscles for their excellent electrostrictive properties.


2001 ◽  
Vol 79 (17) ◽  
pp. 2800-2802 ◽  
Author(s):  
I. A. Santos ◽  
D. Garcia ◽  
J. A. Eiras ◽  
E. R. Manoel ◽  
A. C. Hernandes

2000 ◽  
Vol 45 (15) ◽  
pp. 1380-1385 ◽  
Author(s):  
Guisheng Xu ◽  
Haosu Luo ◽  
Pingchu Wang ◽  
Zhenyi Qi ◽  
Zhiwen Yin

Author(s):  
Heribert A. Graetsch ◽  
Chandra Shehkar Pandey ◽  
Jürgen Schreuer ◽  
Manfred Burianek ◽  
Manfred Mühlberg

CBN crystals show a one- and a two-dimensionally modulated modification. The former is isotypic with orthorhombic Ba4Na2Nb10O30and the latter with the tetragonal tungsten bronze type of crystal structure. The orthorhombic form irreversibly transforms to the tetragonal polymorph at the ferroelectric phase transition near 603 K. Orthorhombic and tetragonal CBN24 slightly differ in the distribution of the Ba and Ca atoms over the incompletely filled Me1 and Me2 sites. The tetragonal symmetry is further broken in orthorhombic CBN24 by different amplitudes of the positional modulations of O atoms which are symmetrically equivalent in the TTB structure. A similar orthorhombic phase of CBN31 could be obtained by quenching from 1473 K.


Sign in / Sign up

Export Citation Format

Share Document