ION-PAIRS IN SUPERIONIC CONDUCTORS .1. THE MODEL

被引:2
作者
SIGARYOV, SE
机构
[1] Institute of Crystallography, USSR Academy of Sciences, Moscow, 117333
来源
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1992年 / 13卷 / 02期
关键词
D O I
10.1016/0921-5107(92)90150-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A model is suggested to describe the superionic state in solids. The model is based on the dominant role of short-range ion-ion interactions in the mobile ion sublattice. Long-range Coulomb forces are assumed to be reduced between conducting ions owing to screening of the ion surroundings of the opposite sign. This leads to the possibility of the appearance of short-living ion-ion pairs consisting of mobile ions. The short-range ion repulsion between paired ions results in an "effective" decrease in potential well depth or, in other words, to a decrease in the activation energy of the ion transport.
引用
收藏
页码:113 / 116
页数:4
相关论文
共 8 条
[1]   CRYSTAL-STRUCTURE OF THE TRUE NASICON - NA3ZR2SI2PO12 [J].
BOILOT, JP ;
COLLIN, G ;
COLOMBAN, P .
MATERIALS RESEARCH BULLETIN, 1987, 22 (05) :669-676
[2]   SUPERIONIC CONDUCTORS LI3FE2(PO4)3, LI3SC2(PO4)3, LI3CR2(PO4)3 - SYNTHESIS, STRUCTURE AND ELECTROPHYSICAL PROPERTIES [J].
BYKOV, AB ;
CHIRKIN, AP ;
DEMYANETS, LN ;
DORONIN, SN ;
GENKINA, EA ;
IVANOVSHITS, AK ;
KONDRATYUK, IP ;
MAKSIMOV, BA ;
MELNIKOV, OK ;
MURADYAN, LN ;
SIMONOV, VI ;
TIMOFEEVA, VA .
SOLID STATE IONICS, 1990, 38 (1-2) :31-52
[3]  
Dickens M. H., 1976, J PHYSIQUE COLL, V37, pC7
[4]  
GUREVICH YY, 1978, PHYS TVERD TELA, V20, P1121
[5]   SINGLE-CRYSTAL STRUCTURE STUDY OF ALPHA-AG2HGI4 - EVIDENCE FOR ANHARMONIC VIBRATION [J].
KASPER, JS ;
BROWALL, KW .
JOURNAL OF SOLID STATE CHEMISTRY, 1975, 13 (1-2) :49-56
[6]  
MAHAN GD, 1976, SUPERIONIC CONDUCTOR, P217
[7]  
NAZRI GA, 1991, SOLID STATE IONICS 2, V210, P143
[8]  
PHYSICS SUPERIONIC C