MOSSBAUER-SPECTRA OF FEXO (X GREATER-THAN 0.95)
MOSSBAUER-SPECTRA OF FEXO (X GREATER-THAN 0.95)
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DOI：
10.1007/bf00307402
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发表时间：
1985-01-01
影响因子：
1.4
通讯作者：
PRICE, DC
中科院分区：
文献类型：
--
作者：
MCCAMMON, CA;PRICE, DC
在298 K和4.2K下，记录了五个FexO样品的穆斯堡尔谱，其组成范围为1.00>x>0.95。在298 K时，FexO的光谱由一个不对称的双峰组成，该双峰对应于一个Fe ~（2+）单重峰、两个Fe ~（2+）双峰和一个Fe ~（3+）单重峰。穆斯堡尔参数随缺陷密度的增加而变化。FexO在4.2 K时的穆斯堡尔谱由大量未分辨的谱线组成。将数据拟合到一系列单线态，以便能够粗略计算与平均Fe 2+和Fe 3+环境相关的量。拟合到298 K光谱的结果进行了简要讨论的物理模型的缺陷结构的FexO。
The Mössbauer spectra of five samples of FexO with compositions in the range 1.00>x>0.95 have been recorded at 298 K and 4.2 K. The spectrum of FexO at 298 K consists of an asymmetric doublet which was fitted to one Fe2+singlet, two Fe2+doublets and 1 Fe3+singlet. The Mössbauer parameters vary consistently with the increasing density of defects asxdecreases. The Mössbauer spectrum of FexO at 4.2 K consists of a large number of unresolved lines. The data were fitted to a series of singlets to enable the rough calculation of quantities relating to the mean Fe2+and Fe3+environments. The results of the fits to the 298 K spectra are briefly discussed in terms of a physical model for the defect structure of FexO.