当前位置: X-MOL 学术Phys. Solid State › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
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

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

摘要

Li 2 SO 4,Na 2 SO 4和K 2 SO 4硫酸盐中的分子弛豫过程;Li 2 CO 3,Na 2 CO 3和K 2 CO 3碳酸盐;NaClO 4和KClO 4高氯酸盐;和Ca(NO 32,Sr(NO 32和Ba(NO 32硝酸盐已经通过拉曼光谱法进行了研究。可以确定的是,这些系统中的一阶相变具有拉伸特性(硫酸盐,碳酸盐和高氯酸盐中的结构相变以及硝酸盐中的结晶熔体相变)。在研究中的所有晶体中都发现了预转变区的存在。
更新日期:2020-06-10
down
wechat
bug