scholarly journals A high-temperature organic–inorganic ferroelectric with outstanding switchable dielectric characteristics

RSC Advances ◽  
2017 ◽  
Vol 7 (76) ◽  
pp. 47933-47937 ◽  
Author(s):  
Cong Xu ◽  
Wenjun Zhang ◽  
Linsong Gao ◽  
Xuecheng Gan ◽  
Xiaofan Sun ◽  
...  

A new molecular ferroelectric is discovered in an organic–inorganic hybrid compound, (C6H5NH3)2CdCl4, which undergoes a reversible order–disorder ferroelectric phase transition at 369 K.

2019 ◽  
Vol 48 (46) ◽  
pp. 17402-17407 ◽  
Author(s):  
Wen-Bo Xin ◽  
Guan-Cheng Xu ◽  
Min Li

Compound (C4H10N)6[InBr6][InBr4]3·H2O undergoes a paraelectric–ferroelectric phase transition at 232 K, which triggered by the disorder–order transition of Br atoms in [InBr4]− anions.


Author(s):  
Zheng Tang ◽  
Xiaofan Sun ◽  
Zhangran Gao ◽  
Dong Li ◽  
Shulin Jiao ◽  
...  

Organic-inorganic hybrid ferroelectric Tris(2-Hydroxyethyl) ammonium trichloro cadmium(Ⅱ) (TATC) with a space group of P21/c at room temperature was obtained in aqueous solution. There goes a paraelectric-ferroelectric phase transition (from monoclinic...


2009 ◽  
Vol 95 (1) ◽  
pp. 012909 ◽  
Author(s):  
Q. H. Jiang ◽  
F. T. Liu ◽  
Ce-Wen Nan ◽  
Yuan-Hua Lin ◽  
M. J. Reece ◽  
...  

2019 ◽  
Vol 55 (77) ◽  
pp. 11571-11574 ◽  
Author(s):  
Han-Yue Zhang ◽  
Si-Qi Lu ◽  
Xin Chen ◽  
Ren-Gen Xiong ◽  
Yuan-Yuan Tang

A host–guest inclusion compound, 18-crown-6 oxonium tetrachloride-gallium(iii), was shown to undergo a 4/mmmFmm2-type ferroelectric phase transition with four crystallographically equivalent polarization directions at 337 K.


2014 ◽  
Vol 89 (2) ◽  
Author(s):  
Antonio Caretta ◽  
Rany Miranti ◽  
Remco W. A. Havenith ◽  
Elia Rampi ◽  
Michiel C. Donker ◽  
...  

2006 ◽  
Vol 21 (7) ◽  
pp. 1787-1792 ◽  
Author(s):  
X.L. Zhu ◽  
X.M. Chen ◽  
X.Q. Liu ◽  
Y. Yuan

In this work, Sr4La2Ti4Nb6O30 ceramics with tetragonal filled tungsten bronze structure were prepared, and the dielectric characteristics and ferroelectric transition were investigated. The room-temperature dielectric constant of the present ceramics showed very weak frequency dependency; it decreased from 570.4 to 561.7 when the frequency varied from 200 Hz to 1 MHz, and a comparatively low-dielectric loss was observed (in the order of 10−3). Unlike the situation for Ba4Ln2Ti4Nb6O30 (Ln = La, Nd and Sm), Sr4La2Ti4Nb6O30 ceramics showed a diffuse ferroelectric phase transition, and the diffuseness exponent γ was 1.61. Moreover, the obvious frequency dispersion was observed over a broad frequency range from 200 Hz to 1 MHz, and the maximum dielectric constant temperature Tmax shifted to higher temperatures with increasing frequency. The dielectric data agreed closely with the Vogel–Fulcher relationship. We concluded that tungsten bronze Sr4La2Ti4Nb6O30 has the relaxor ferroelectric nature.


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