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Pretransition Phenomena Near First-Order Phase Transitions in Ion-Molecular Crystals
Physics of the Solid State ( IF 0.6 ) Pub Date : 2020-06-10 , DOI: 10.1134/s1063783420060037 A. R. Aliev , I. R. Akhmedov , M. G. Kakagasanov , Z. A. Aliev
中文翻译:
离子分子晶体中接近一阶相变的过渡前现象
更新日期:2020-06-10
Physics of the Solid State ( IF 0.6 ) Pub Date : 2020-06-10 , DOI: 10.1134/s1063783420060037 A. R. Aliev , I. R. Akhmedov , M. G. Kakagasanov , Z. A. Aliev
Abstract
Processes of molecular relaxation in Li2SO4, Na2SO4, and K2SO4 sulfates; Li2CO3, Na2CO3, and K2CO3 carbonates; NaClO4 and KClO4 perchlorates; and Ca(NO3)2, Sr(NO3)2, and Ba(NO3)2 nitrates have been investigated by Raman spectroscopy. It is established that the first-order phase transitions in these systems have a stretched character (structural phase transitions in sulfates, carbonates, and perchlorates and crystal–melt phase transitions in nitrates). The existence of a pretransition region is found in all crystals under investigation.中文翻译:
离子分子晶体中接近一阶相变的过渡前现象