ZnCr2-xFexO4系列化合物的合成及其性质表征

河北大学学报(自然科学版) ›› 2012, Vol. 32 ›› Issue (6): 619-624.

ZnCr2-xFexO4系列化合物的合成及其性质表征

霍国燕,任鑫,霍纪,闫旭

河北大学化学与环境科学学院,河北保定,071002

出版日期:2012-11-25 发布日期:2012-11-25
基金资助:
河北省自然科学基金资助项目

Synthesis and characterization of ZnFe2-xFexO4 series

HUO Guoyan,REN Xin,HUO Ji,YAN Xu

Online:2012-11-25 Published:2012-11-25

摘要/Abstract

摘要： 采用固相法合成了尖晶石结构的ZnCr2O4以及铁取代的系列尖晶石结构化合物,利用X线衍射、红外光谱和磁性测量对该系列化合物进行了表征.结果表明:这些化合物属于面心立方,空间群为Fd 3m,晶胞参数a=0.8324～0.8356 nm,并且晶胞参数随着掺铁量增大而增加.红外光谱中出现了四面体和八面体吸收峰,而且这2种多面体的吸收峰的波数随着铁含量增加逐渐向低波数方向线性移动.系列化合物的磁矩随磁场的增大而增加,其饱和磁化强度与各向异性场随着铁掺入量增加呈现相反的变化.自发磁化强度随晶粒增大而近乎线性减小.各向异性场的测定表明ZnCr2O4属于软磁性化合物.

中图分类号:

O611

霍国燕,任鑫,霍纪,闫旭. ZnCr2-xFexO4系列化合物的合成及其性质表征[J]. 河北大学学报(自然科学版), 2012, 32(6): 619-624.

HUO Guoyan,REN Xin,HUO Ji,YAN Xu. Synthesis and characterization of ZnFe2-xFexO4 series[J]. Journal of Hebei University (Natural Science Edition), 2012, 32(6): 619-624.

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