Temperature-Triggered Reversible Dielectric and Nonlinear Optical Switch Based on the One-Dimensional Organic–Inorganic Hybrid Phase Transition Compound [C6H11NH3]2CdCl4

2014 ◽  
Vol 53 (20) ◽  
pp. 11146-11151 ◽  
Author(s):  
Wei-Qiang Liao ◽  
Heng-Yun Ye ◽  
Da-Wei Fu ◽  
Peng-Fei Li ◽  
Li-Zhuang Chen ◽  
...  

2016 ◽  
Vol 52 (74) ◽  
pp. 11135-11138 ◽  
Author(s):  
Guang-Quan Mei ◽  
Han-Yue Zhang ◽  
Wei-Qiang Liao

The compound exhibits switchable SHG effect and tunable dielectric behaviors, associated with its symmetry breaking phase transition.





1974 ◽  
Vol 32 (15) ◽  
pp. 836-839 ◽  
Author(s):  
B. Renker ◽  
L. Pintschovius ◽  
W. Gläser ◽  
H. Rietschel ◽  
R. Comès ◽  
...  






2002 ◽  
Vol 12 (9) ◽  
pp. 357-360
Author(s):  
M. Buron ◽  
E. Collet ◽  
M. H. Lemée-Cailleau ◽  
H. Cailleau ◽  
T. Luty ◽  
...  

Mixed-stack charge-transfer (CT) complexes undergoing the neutral-ionic (N-I) phase transition are molecular materials formed of stacks where electron donor (D) and acceptor (A) molecules regularly alternate. In the N phase, the CT is low and molecules are situated on inversion centers, while in the I phase, the increase of CT is accompanied by a lattice distortion (dimerization process and symmetry breaking). The one-dimensional (1D) architecture triggers the chain multistability by stabilizing lattice-relaxed (LR)-CT excitations ...D° A° D° A° $(D^+A^-)(D^+A^-)(D^+A^-)$ Do A" D° A° D°... These 1D nano-scale objects are at the heart of the equilibrium N-I phase transition and govern the fascinating physical properties such as giant dielectric response or photo-induced phase transformations. In this contribution, the 1D character of these critical excitations will be demonstrated by direct observation using high resolution X-Ray diffraction.





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