The complex oxides with octahedral structures:Existence areas and phase transitions  

作　　者：G.A.Geguzina 

机构地区：[1]Research Institute of Physics,Southern Federal University 194 Stachki Ave.,Rostov-on-Don,344090 Rostov Oblast,Russia

出　　处：《Journal of Advanced Dielectrics》2020年第1期80-92,共13页先进电介质学报（英文）

基　　金：Research was financially supported by the Ministry of Science and Higher Education of the Russian Federation(State assignment in the field of scientific activity,Southern Federal University,2020).

摘　　要：The experimental and calculated data on the existence of complex oxides in solid state with the octahedral structures of four families,namely perovskites,Bi-containing layered perovskite-like ones,tetragonal tungsten bronzes and pyrochlores,and about their phase transitions are systematized and summarized on the basis of the quasi-elastic or geometric models of these structures.It has been established that similar existence areas and similar correlations between the interatomic bond strains in their structures,on the one hand,and the temperatures of their ferroelectric or antiferroelectric phase transitions,on the other hand,are observed for all of them,despite the differences in the compositions and structures of these oxides,but taking into account their similar parameters.

关 键 词：Complex oxides with octahedral structures perovskite structure Bi-containing layered perovskite-like structures tetragonal tungsten bronze structure pyrochlore structure 

分 类 号：O17[理学—数学]