Optical study of structural phase transition in organic charge-transfer crystals K- and Rb-tetracyanoquinodimethane

1987 ◽  
Vol 36 (7) ◽  
pp. 3858-3867 ◽  
Author(s):  
H. Okamoto ◽  
Y. Tokura ◽  
T. Koda
Keyword(s):  
Phase Transition ◽  
Charge Transfer ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Optical Study

scholarly journals Optical study of the structural phase transition of BaMnF4

1980 ◽  
Vol 41 (17) ◽  
pp. 423-425 ◽  
Author(s):  
M. Regis ◽  
M. Candille ◽  
P. St-Gregoire
Keyword(s):  
Phase Transition ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Optical Study

The Effect of the Central Metal Atom on the Structural Phase Transition of Indium Doped Metal Phthalocyanine

2013 ◽  
Vol 717 ◽  
pp. 146-152
Author(s):  
Sunit Rojanasuwan ◽  
Pakorn Prajuabwan ◽  
Annop Chanhom ◽  
Anuchit Jaruvanawat ◽  
Adirek Rangkasikorn ◽  
...  
Keyword(s):  
Phase Transition ◽  
Charge Transfer ◽  
Metal Atom ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Central Metal Atom ◽  
Physical Interaction ◽  
Central Metal ◽  
Β Phase ◽  
Α Phase

We investigate the effect of central metal atom on the phthalocyanine (Pc) molecular crystals as intercalated with indium. As dopant, indium has physical interaction with some atom in the ring of Pc molecule and there is charge transfer between indium atom and Pc ring atom. Since In-doped Pc is a hole doping which increase positive charge carriers and the HOMO of ZnPc, CuPc, NiPc and MgPc are localized on the phthalocyanine ring, then, the central metal atom e.g. Zn, Cu, Ni and Mg are not directly involved with the charge transfer between indium dopant and their Pc molecule. The structural phase transition from α phase to β phase of ZnPc upon doping with indium is another evidence for the existing of charge transfer between dopant atom and matrix Pc molecule. A comparative experiment of optical absorption spectrum of each metal Pc reveals that the central metal atom will affect the forming of crystal structure whether will be α phase or β phase as intercalated with indium.

Structural Phase Transition of Multilayer VSe2

2020 ◽  
Vol 12 (22) ◽  
pp. 25143-25149 ◽  
Author(s):  
Dian Li ◽  
Xiong Wang ◽  
Chi-ming Kan ◽  
Daliang He ◽  
Zejun Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Structural Phase Transition ◽  
Structural Phase

scholarly journals Raman spectroscopy study of the behavior of the soft mode in a structural phase transition in the Pr3Sb5O12 crystal

2015 ◽  
Vol 57 (11) ◽  
pp. 2286-2289 ◽  
Author(s):  
A. S. Oreshonkov ◽  
A. K. Khodzhibaev ◽  
A. S. Krylov ◽  
M. F. Umarov ◽  
A. N. Vtyurin
Keyword(s):  
Phase Transition ◽  
Raman Spectroscopy ◽  
Structural Phase Transition ◽  
Soft Mode ◽  
Structural Phase ◽  
Spectroscopy Study
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