Phase transitions and dielectric properties of a hexagonal ABX3 perovskite-type organic–inorganic hybrid compound: [C3H4NS][CdBr3]

2015 ◽  
Vol 44 (23) ◽  
pp. 10614-10620 ◽  
Author(s):  
Wei-Qiang Liao ◽  
Heng-Yun Ye ◽  
Yi Zhang ◽  
Ren-Gen Xiong
Keyword(s):  
Phase Transitions ◽  
Dielectric Properties ◽  
Two Phase ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
Perovskite Type

The perovskite-type hybrid thiazolium tribromocadmate(ii) exhibits two phase transitions at 180 and 146 K, accompanied by remarkable dielectric responses.

Structural phase transitions coupled with prominent dielectric anomalies and dielectric relaxation in a one-dimensional organic–inorganic hybrid compound [C3H4NS][CdCl3]

2015 ◽  
Vol 3 (33) ◽  
pp. 8535-8541 ◽  
Author(s):  
Guang-Quan Mei ◽  
Wei-Qiang Liao
Keyword(s):  
Phase Transitions ◽  
Dielectric Relaxation ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
Two Phase ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
One Dimensional

A one-dimensional organic–inorganic hybrid exhibits two phase transitions at 288 and 215 K, coupled with remarkable dielectric performances.

Dielectric Properties and Diffuse Phase Transition of Sol-Gel Derived 0.94(Bi0.5Na0.5)TiO3-0.06BaTiO3 Ceramics

2011 ◽  
Vol 311-313 ◽  
pp. 1481-1484 ◽  
Author(s):  
Xiao Fang Cheng ◽  
Xin Gui Tang ◽  
Shao Gong Ju ◽  
Yan Ping Jiang ◽  
Qiu Xiang Liu
Keyword(s):  
Phase Transitions ◽  
Dielectric Properties ◽  
Sol Gel ◽  
X Ray Diffraction ◽  
Two Phase ◽  
Air Atmosphere ◽  
Sol Gel Process ◽  
Perovskite Type ◽  
Dielectric Permittivity And Loss ◽  
Diffuse Phase

The 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 (abbreviated to BNT-BT) powder and ceramic was synthesized by sol-gel process. The phase structure and dielectric properties of the ceramics were investigated. The ceramic was sintering at 1000-1100 degree C for 2-4 h in air atmosphere, and the X-ray diffraction (XRD) results revealed that the samples was pure perovskite-type phase. The Curite temperature of BNT-BT ceramics was high up to 348 degree C. The temperature dependence of dielectric permittivity and loss revealed there were two phase transitions, which were from ferroelectric (tetragonal) to anti-ferroelectric (rhombohedral) and anti-ferroelectric to paraelectric (cubic) in BNT-BT ceramics. Diffuse phase transitions were observed in BNT and BNT-BT ceramics and the Curie-Weiss Exponent (CWE) were nearly 2.

scholarly journals Preparation, Thermal, and Physical Properties of Perovskite-Type (C3H7NH3)2CdCl4 Crystals

Crystals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 108 ◽  
Author(s):  
Ae Lim ◽  
Sun Kim
Keyword(s):  
Phase Transitions ◽  
Physical Properties ◽  
Relaxation Times ◽  
Magic Angle Spinning ◽  
Mas Nmr ◽  
Spin Lattice Relaxation ◽  
Magic Angle ◽  
Scanning Calorimetry ◽  
Two Phase ◽  
Perovskite Type

To investigate the thermal and physical properties of perovskite-type (C3H7NH3)2CdCl4, its temperature-dependent chemical shifts and spin–lattice relaxation times are measured using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), magic angle spinning nuclear magnetic resonance (MAS NMR), and static NMR methods. Above 300 K, two phase transitions are observed at 398 K and 538 K. Each proton and carbon in the (C3H7NH3) cation is distinguished in the MAS NMR results. The environments around 1H, 13C, and 14N do not change with temperature according to the NMR spectra. In contrast, the resonance frequency of 113Cd in the CdCl6 octahedra decreases with increasing temperature, indicating an environmental change. The uniaxial rotations for 1H and 13C have high mobility at both high and low temperatures, and these are related to the phase transitions. In addition, the molecular motion of 113Cd in the anion becomes activated upon raising the temperature.

Dielectric and photoluminescence properties of a layered perovskite-type organic–inorganic hybrid phase transition compound: NH3(CH2)5NH3MnCl4

2016 ◽  
Vol 4 (9) ◽  
pp. 1881-1885 ◽  
Author(s):  
Xing-Hui Lv ◽  
Wei-Qiang Liao ◽  
Peng-Fei Li ◽  
Zhong-Xia Wang ◽  
Chen-Yu Mao ◽  
...  
Keyword(s):  
Phase Transition ◽  
Layered Perovskite ◽  
Photoluminescence Properties ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
Perovskite Type

The organic–inorganic hybrid compound NH3(CH2)5NH3MnCl4 exhibits a phase transition at 298 K, coupled with switchable dielectric and photoluminescence performances.

Phase transitions and dielectric properties of perovskite-type oxyfluorides (1-x)KNbO3-xKMgF3

2018 ◽  
Vol 209 ◽  
pp. 65-72 ◽  
Author(s):  
Tetsuhiro Katsumata ◽  
Nobuhiro Sawada ◽  
Ryosuke Kuraya ◽  
Takuma Hamagaki ◽  
Akihisa Aimi ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Dielectric Properties ◽  
Perovskite Type

Successive near-room-temperature dielectric phase transitions in a lead-free hybrid perovskite-like compound

2019 ◽  
Vol 6 (1) ◽  
pp. 233-237 ◽  
Author(s):  
Jing Zhang ◽  
Shiguo Han ◽  
Xitao Liu ◽  
Chengmin Ji ◽  
Kewen Tao ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Room Temperature ◽  
Lead Free ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
Dielectric Phase ◽  
Hybrid Perovskite ◽  
Successive Phase

We have reported a lead-free organic–inorganic hybrid compound, (hexamethyleneimine)2BiBr5 (1), which undergoes three successive phase transitions in the vicinity of room temperature.

Sequential structural transitions with distinct dielectric responses in a layered perovskite organic–inorganic hybrid material: [C4H9N]2[PbBr4]

2015 ◽  
Vol 44 (47) ◽  
pp. 20406-20412 ◽  
Author(s):  
Zhong-Xia Wang ◽  
Wei-Qiang Liao ◽  
Heng-Yun Ye ◽  
Yi Zhang
Keyword(s):  
Phase Transitions ◽  
Hybrid Material ◽  
Layered Compound ◽  
Layered Perovskite ◽  
Structural Transitions ◽  
Two Phase ◽  
Inorganic Hybrid ◽  
Inorganic Hybrid Material

A novel organic–inorganic hybrid layered compound undergoes two phase transitions at 315 and 250 K, accompanied by distinct dielectric responses.

Preparation and characterization of a layered perovskite-type organic–inorganic hybrid compound based on (C6H4)2N (CH2)6NH3Cl

2009 ◽  
Vol 159 (23-24) ◽  
pp. 2425-2429 ◽  
Author(s):  
Gang Wu ◽  
Siyuan Cheng ◽  
Meng Deng ◽  
Yingying Zheng ◽  
Hongzheng Chen ◽  
...  
Keyword(s):  
Layered Perovskite ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
Perovskite Type
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