Vibrational Spectra of Ion–Molecular Carbonate Crystals in the Pretransition Region near Structural Phase Transitions


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Molecular relaxation processes in lithium (Li2CO3), sodium (Na2CO3), and potassium (K2CO3) carbonates are studied by Raman spectroscopy. It is found that the first-order structural phase transition in Li2CO3, Na2CO3, and K2CO3 carbonate crystals is extended. The existence of a pretransition region in the studied Li2CO3, Na2CO3, and K2CO3 carbonates is demonstrated.

Sobre autores

A. Aliev

Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences

Autor responsável pela correspondência
Email: amilaliev@rambler.ru
Rússia, Makhachkala, 367003

I. Akhmedov

Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences

Email: amilaliev@rambler.ru
Rússia, Makhachkala, 367003

M. Kakagasanov

Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences

Email: amilaliev@rambler.ru
Rússia, Makhachkala, 367003

Z. Aliev

Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences

Email: amilaliev@rambler.ru
Rússia, Makhachkala, 367003

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