High temperature structural phase transition and dielectric relaxation in an organic–inorganic hybrid compound: (4-methylpiperidinium)CdCl3

CrystEngComm ◽  
2017 ◽  
Vol 19 (14) ◽  
pp. 1896-1901 ◽  
Author(s):  
Yang Lu ◽  
Zhongxia Wang ◽  
Hai-Peng Chen ◽  
Jia-Zhen Ge
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Dielectric Relaxation ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Hybrid Compound ◽  
Inorganic Hybrid

Above room-temperature dielectric switching and semiconducting properties of a layered organic–inorganic hybrid compound: (C6H12N)2Pb(NO3)4

2020 ◽  
Vol 49 (46) ◽  
pp. 16860-16865
Author(s):  
Jia-Ying Jiang ◽  
Qi Xu ◽  
Jia-Jun Ma ◽  
Zhi-Xin Gong ◽  
Chao Shi ◽  
...  
Keyword(s):  
Phase Transition ◽  
Dielectric Constant ◽  
Structural Phase Transition ◽  
Room Temperature ◽  
Structural Phase ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
Semiconducting Properties

(C6H12N)2Pb(NO3)4, a layered hybrid semiconductor with switchable dielectric constant, undergoes a structural phase transition around 352 K.

High-temperature structural phase transition coupled with dielectric switching in an organic–inorganic hybrid crystal: [NH3(CH2)2Br]3CdBr5

2017 ◽  
Vol 46 (14) ◽  
pp. 4711-4716 ◽  
Author(s):  
Hai-Peng Chen ◽  
Zhong-Xia Wang ◽  
Cheng Chen ◽  
Yang Lu ◽  
Zi Yin ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Environmentally Friendly ◽  
Light Weight ◽  
Inorganic Hybrid ◽  
Intelligent Materials

Molecular bistable switches (electrical switches “ON” and “OFF”) represent a class of highly desirable intelligent materials due to their sensitive switchable responses, simple and environmentally friendly processing, light weight, and mechanical flexibility.

Structural phase transition and dielectric anisotropy properties of a lead-free organic–inorganic hybrid

2019 ◽  
Vol 6 (7) ◽  
pp. 1761-1766 ◽  
Author(s):  
Tao Yang ◽  
Bing Teng ◽  
Shiguo Han ◽  
Maofan Li ◽  
Zhiyun Xu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Lead Free ◽  
Dielectric Anisotropy ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
Organic Hybrid

We presented a new inorganic–organic hybrid compound, which exhibits phase transition and dielectric anisotropy properties.

A high temperature structural phase transition in crocoite (PbCrO4) at 1068 K: crystal structure refinement at 1073 K and thermal expansion tensor determination at 1000 K

2000 ◽  
Vol 64 (2) ◽  
pp. 291-300 ◽  
Author(s):  
K. S. Knight
Keyword(s):  
Crystal Structure ◽  
Phase Transition ◽  
Thermal Expansion ◽  
High Temperature ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Structure Type ◽  
Temperature Phase ◽  
Thermal Expansion Tensor ◽  
Principal Axes

AbstractHigh-resolution, neutron time-of-flight, powder diffraction data have been collected on natural crocoite between 873 and 1073 K. Thermal analysis carried out in the 1920s had suggested that chemically pure PbCrO4 exhibited two structural phase transitions, at 964 K, to the β phase, and at 1056 K, to the γ phase. In this study, no evidence was found for the α-β structural phase transition, however a high-temperature phase transition was found at ∼1068 K from the ambient-temperature monazite structure type to the baryte structure type. The phase transition, close to the temperatures reported for the β to γ phase modifications, is first order and is accompanied by a change in volume of −1.6%. The crystal structure of this phase has been refined using the Rietveld method to agreement factors of Rp = 0.018, Rwp = 0.019, Rp = 0.011. No evidence for premonitory behaviour was found in the temperature dependence of the monoclinic lattice constants rom 873 K to 1063 K and these have been used to determine the thermal expansion tensor of crocoite just below the phase transition. At 1000 K the magnitudes of the tensor coefficients are α11, 2.66(1) × 10−5 K−1; α22, 2.04(1) × 10−5 K−1; α33, 4.67(4) × 10−5 K−1; and α13, −1.80(2) × 10−5 K−1 using the IRE convention for the orientation of the tensor basis. The orientation of the principal axes of the thermal expansion tensor are very close to those reported previously for the temperature range 50–300 K.

Holmium induced enhanced functionality at room temperature and structural phase transition at high temperature in bismuth ferrite nanoparticles

2016 ◽  
Vol 4 (4) ◽  
pp. 780-792 ◽  
Author(s):  
Smita Chaturvedi ◽  
Rabindranath Bag ◽  
Vasant Sathe ◽  
Sulabha Kulkarni ◽  
Surjeet Singh
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
High Temperatures ◽  
Structural Phase Transition ◽  
Room Temperature ◽  
Bismuth Ferrite ◽  
Structural Phase ◽  
Ferrite Nanoparticles ◽  
High Coercivity ◽  
Remnant Magnetization

Ho-doped sample simultaneously exhibits high-coercivity and enhanced remnant magnetization with a polar R3c symmetry at room temperature. The onset of R3c to Pnma phase transition is observed at high temperatures in the Ho-doped samples.

Sign in / Sign up

Export Citation Format

Share Document