Synthesis and characterization of a new organic–inorganic hybrid ferroelectric: (C4H10N)6[InBr6][InBr4]3·H2O

2019 ◽  
Vol 48 (46) ◽  
pp. 17402-17407 ◽  
Author(s):  
Wen-Bo Xin ◽  
Guan-Cheng Xu ◽  
Min Li
Keyword(s):  
Phase Transition ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Order Transition ◽  
Synthesis And Characterization ◽  
Inorganic Hybrid ◽  
Compound C

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.

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 ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Hybrid Compound ◽  
Dielectric Characteristics ◽  
Inorganic Hybrid ◽  
Compound C

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.

Ferroelectric Properties in Organic-inorganic Hybrid Material Tris(2-Hydroxyethyl) ammonium Trichloro Cadmium(Ⅱ)

2022 ◽  
Author(s):  
Zheng Tang ◽  
Xiaofan Sun ◽  
Zhangran Gao ◽  
Dong Li ◽  
Shulin Jiao ◽  
...  
Keyword(s):  
Phase Transition ◽  
Aqueous Solution ◽  
Hybrid Material ◽  
Ferroelectric Phase Transition ◽  
Room Temperature ◽  
Ferroelectric Phase ◽  
Ferroelectric Properties ◽  
Inorganic Hybrid ◽  
Space Group ◽  
Inorganic Hybrid Material

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...

scholarly journals Low-frequency Raman study of the ferroelectric phase transition in a layeredCuCl4-based organic-inorganic hybrid

2014 ◽  
Vol 89 (2) ◽  
Author(s):  
Antonio Caretta ◽  
Rany Miranti ◽  
Remco W. A. Havenith ◽  
Elia Rampi ◽  
Michiel C. Donker ◽  
...  
Keyword(s):  
Phase Transition ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Low Frequency ◽  
Inorganic Hybrid ◽  
Raman Study

scholarly journals The origin of the lattice thermal conductivity enhancement at the ferroelectric phase transition in GeTe

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Đorđe Dangić ◽  
Olle Hellman ◽  
Stephen Fahy ◽  
Ivana Savić
Keyword(s):  
Phase Transition ◽  
Thermal Conductivity ◽  
Phase Transitions ◽  
Thermoelectric Materials ◽  
Ferroelectric Phase Transition ◽  
Lattice Thermal Conductivity ◽  
Ferroelectric Phase ◽  
Structural Phase ◽  
High Symmetry ◽  
Structural Phase Transitions

AbstractThe proximity to structural phase transitions in IV-VI thermoelectric materials is one of the main reasons for their large phonon anharmonicity and intrinsically low lattice thermal conductivity κ. However, the κ of GeTe increases at the ferroelectric phase transition near 700 K. Using first-principles calculations with the temperature dependent effective potential method, we show that this rise in κ is the consequence of negative thermal expansion in the rhombohedral phase and increase in the phonon lifetimes in the high-symmetry phase. Strong anharmonicity near the phase transition induces non-Lorentzian shapes of the phonon power spectra. To account for these effects, we implement a method of calculating κ based on the Green-Kubo approach and find that the Boltzmann transport equation underestimates κ near the phase transition. Our findings elucidate the influence of structural phase transitions on κ and provide guidance for design of better thermoelectric materials.

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