Raman spectroscopy of structural phase transitions in Ag26I18W4O16

1978 ◽  
Vol 69 (11) ◽  
pp. 4984-4989 ◽  
Author(s):  
F. Habbal ◽  
J. A. Zvirgzds ◽  
J. F. Scott
Keyword(s):  
Raman Spectroscopy ◽  
Phase Transitions ◽  
Structural Phase ◽  
Structural Phase Transitions

scholarly journals Structural Phase Transitions between 700 and 850.DEG.C. in SrZrO3 Studied by Raman Spectroscopy

2004 ◽  
Vol 112 (1304) ◽  
pp. 189-192 ◽  
Author(s):  
Hirotaka FUJIMORI ◽  
Masato KAKIHANA ◽  
Koji IOKU ◽  
Seishi GOTO ◽  
Masahiro YOSHIMURA
Keyword(s):  
Raman Spectroscopy ◽  
Phase Transitions ◽  
Structural Phase ◽  
Structural Phase Transitions

scholarly journals Предпереходные явления в области фазовых переходов первого рода в ионно-молекулярных кристаллах

2020 ◽  
Vol 62 (6) ◽  
pp. 890
Author(s):  
А.Р. Алиев ◽  
И.Р. Ахмедов ◽  
М.Г. Какагасанов ◽  
З.А. Алиев
Keyword(s):  
Phase Transition ◽  
Raman Spectroscopy ◽  
Phase Transitions ◽  
Transition Region ◽  
Diffuse Phase Transition ◽  
Structural Phase ◽  
Study Phase ◽  
Relaxation Processes ◽  
Structural Phase Transitions ◽  
Diffuse Phase

Raman spectroscopy was used to study the molecular relaxation processes in sulfates Li2SO4, Na2SO4, K2SO4, carbonates Li2CO3, Na2CO3, K2CO3, perchlorates NaClO4, KClO4 and nitrates Ca(NO3)2, Sr(NO3)2, Ba(NO3)2. It has been established that in the systems under study, phase transitions of the first kind are stretched in nature (diffuse phase transition): in sulfates, carbonates and perchlorates they are structural phase transitions, and in nitrates this is a crystal-melt phase transition. The existence of a pre-transition region was found in all the crystals studied.

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