| 铬铁矿中的次近邻效应 |
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| 引用本文： | 李哲,金明芝.铬铁矿中的次近邻效应[J].矿物学报,1990,10(2):186-191. |
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| 作者姓名： | 李哲 金明芝 |
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| 作者单位： | 中国科学院地质研究所 北京
(李哲，张金民)，吉林大学物理系 长春
(金明芝)，吉林大学物理系 长春(刘密兰) |
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| 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。
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| 关 键 词： | 铬铁矿 近邻效应 穆斯堡尔效应 |
NEXT NEAREST NEIGHBOR EFFECT IN CHROMITE |
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| Li Zhe Jin Mingzhi Zhang Jinming Liu Milan.NEXT NEAREST NEIGHBOR EFFECT IN CHROMITE[J].Acta Mineralogica Sinica,1990,10(2):186-191. |
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| Authors: | Li Zhe Jin Mingzhi Zhang Jinming Liu Milan |
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| Institution: | Li Zhe Jin Mingzhi~* Zhang Jinming Liu Milan~* |
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| Abstract: | 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. |
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| Keywords: | Mssbauer effect next nearest neighbor effect chromite |
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