Chemical Control of Ferroelectric Neutral-Ionic Transition in Charge-Transfer Complexes, TTF1-xTSFxQCl4[TTF = Tetrathiafulvalene; TSF = Tetraselenafulvalene; QCl4=p-Chloranil]

1998 ◽  
Vol 120 (29) ◽  
pp. 7379-7380 ◽  
Author(s):  
Sachio Horiuchi ◽  
Reiji Kumai ◽  
Yoshinori Tokura
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.


2020 ◽  
Vol 12 (21) ◽  
pp. 24174-24183 ◽  
Author(s):  
Tomoki Uekusa ◽  
Ryonosuke Sato ◽  
Dongho Yoo ◽  
Tadashi Kawamoto ◽  
Takehiko Mori

1996 ◽  
Vol 374 (1-3) ◽  
pp. 147-153 ◽  
Author(s):  
M. Le Cointe ◽  
M.H. Lemée-Cailleau ◽  
H. Cailleau ◽  
B. Toudic

2004 ◽  
Vol 70 (8) ◽  
Author(s):  
Takako Iizuka-Sakano ◽  
Tohru Kawamoto ◽  
Yukihiro Shimoi ◽  
Shuji Abe

1996 ◽  
Vol 374 (1-3) ◽  
pp. 147-153
Author(s):  
M. Le Cointe ◽  
M.H. Lemée-Cailleau ◽  
H. Cailleau ◽  
B. Toudic

2012 ◽  
Vol 407 (11) ◽  
pp. 1793-1795 ◽  
Author(s):  
Yuichi Otsuka ◽  
Hitoshi Seo ◽  
Kazuyoshi Yoshimi ◽  
Takeo Kato

2002 ◽  
Vol 75 (7-8) ◽  
pp. 831-837 ◽  
Author(s):  
T. Iizuka-sakano ◽  
T. Kawamoto ◽  
Y. Shimoi ◽  
S. Abe

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