铬离子取代对LaGa_（1－x）Cr_xO_3性质的影响  

Effect of Substitution of Chromium Ion on the Properties of LaGa_(1-x)Cr_xO_3

作　　者：杨健美[1] 苏锵[1] 

机构地区：[1]中国科学院长春应用化学研究所稀土化学与物理开放实验室

出　　处：《应用化学》1996年第6期46-48,共3页Chinese Journal of Applied Chemistry

基　　金：国家科委攀登计划

摘　　要：铬离子取代对ＬａＧａ_（１－ｘ）Ｃｒ_ｘＯ_３性质的影响杨健美，苏锵（中国科学院长春应用化学研究所稀土化学与物理开放实验室长春１３００２２）关键词铬离子，取代，ＬａＧａ_（１－ｘ）Ｃｒ_ｘＯ_３，镓酸镧，稀土化合物含过渡元素的ＡＢＯ３型复合氧化物的许多性质...LaGa1-xCrxO3(x=0,0.2,0.4,0.6,0.8,1.0) were synthesized by solid state reaction for the first time. The effects of chromium ion substitution on the structure,IR spectra,electric properties and magnetic properties of LaGa1-xCrxO3 were investigated.Some regularities of changes were obtained.The results show that Cr3+ enters into lattice and induces the lattice distortion of compounds.The Ga-O stretching vibrations and O-Ga-O deformation vibrations are shifted to high frequencies after substitution of Cr3+ for Ga3+.The resistivity decreases and susceptibility increases as the concentration of Cr3+ increases.

关 键 词：铬离子 取代 镓酸镧 稀土化合物 

分 类 号：O614.331[理学—无机化学]