摘要
本文使用穆斯堡尔效应对三个铬铁矿进行了研究,测量了铬铁矿L-1在150K和298K温度下的穆斯堡尔谱和铬铁矿L-2和L-3在298K温度下的谱。使用次近邻效应解释了铬铁矿中的多重Fe^(2+)双峰,并使用二项式分布计算了Cr^(3+)、Fe^(3+)和Al占据次近邻位置的几率。在穆斯堡尔面积和二项式分布计算的基础上做出了Fe^(2+)双峰的指派。铬铁矿L-1谱在150K下进一步分裂,表明用来解释铬铁矿谱的模型是正确的。
Three chromites were studied by using Mssbauer effect in this paper. The Mssbauer spectra of chromite L-1 at 150K and 298K and of chromites L-2 and L-3 at 298K were measured. Next nearest neighbor effect was used to explain the multiple Fe^(2+) doublets in the chromite spectra. The possibilities of occupying the next nearest neighbor sites by Cr^(3+), Fe^(3+) and Al ions were calculated in terms of binomial distribution.The assignments for Fe^(2+) doublets were given based on the Mssbauer areas and binomial distribution calculations. Further splitting of Fe^(2+) doublets of chromite L-1 spectrum at 150K indicates that the model to explain the chromite spectra is valid.
出处
《矿物学报》
CAS
CSCD
北大核心
1990年第2期186-191,共6页
Acta Mineralogica Sinica
关键词
铬铁矿
近邻效应
穆斯堡尔效应
Mssbauer effect
next nearest neighbor effect
chromite
