| 黄铁矿表面的扫描隧道显微镜研究 |
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| 引用本文： | 瘳立兵 唐跃刚. 黄铁矿表面的扫描隧道显微镜研究[J]. 地球科学, 1994, 19(1): 39-42 |
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| 作者姓名： | 瘳立兵 唐跃刚 |
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| 作者单位： | 中国地质大学材料科学系 北京100083(廖立兵，马哲生，施倪承)，中国矿业大学北京研究生部 北京100083(唐跃刚，任德贻) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为了探讨硫元素在煤中的赋存，对煤硫元素的主要载体黄铁矿的表面进行了扫描隧道显微镜研究，在硅油保护下得到了黄铁矿表面高分辨率图象。根据黄铁矿晶体结构的几何分析，所观察到的是黄铁矿｛２２０｝表面的原子分布，黄铁矿的能带结构资料及前人在这方面的研究均表明，用扫描隧道显微镜应首先观察到黄铁矿表面的铁原子，但作者首先观察到的却是黄铁矿表面的硫原子，此外，作者根据所获得的实验结果认为。无论是在｛２１０｝文向还
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| 关 键 词： | 显微镜 表面结构 晶体 黄铁矿 |
Scanning Tunneling Microscopy of Pyrite Surface |
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| Liao Libing Ma Zhesheng Shi Nicheng. Scanning Tunneling Microscopy of Pyrite Surface[J]. Earth Science-Journal of China University of Geosciences, 1994, 19(1): 39-42 |
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| Authors: | Liao Libing Ma Zhesheng Shi Nicheng |
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| Abstract: | In order to understand the existing state of sulphur element in coal, the authors study the surface of pyrite, which is the main carrier of sulphur element in coal, with scanning tunneling microscope (STM). High resolution images of pyrite surface were obtained under oil. Analysis based on pyrite crystal structure reveales that the observed surface is the {210} surface of pyrite. Pyrite band data suggest that Fe atoms on pyrite surface should be displayed easier than S atoms. But S atom on {210} surface of our sample seems to come out more clear than Fe atom. This may be related to the impuri-ties of the sample or the absorption of the surface. Based on the experiment results, the authors believe that atoms of underlayers of the surface make little contribution to imaging both in {210} and {100}, {101} directions. |
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| Keywords: | scanning tunneling microscope (STM) surface crystal. |
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