| 用扫描隧道显微镜对材料进行表面修饰的研究 |
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| 引用本文： | 马自力,竺长新,沈健,庞世瑾,薛增泉. 用扫描隧道显微镜对材料进行表面修饰的研究[J]. 真空科学与技术学报, 1993, 0(1) |
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| 作者姓名： | 马自力 竺长新 沈健 庞世瑾 薛增泉 |
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| 作者单位： | 中国科学院北京真空物理实验室，中国科学院北京真空物理实验室，中国科学院北京真空物理实验室，中国科学院北京真空物理实验室，北京大学无线电电子学系 北京 100080，北京 100080，北京 100080，北京 100080，北京 100871 |
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| 摘 要： | 扫描隧道显微镜(STM)是对材料表面进行表面修饰(surface modification)和表面原子操纵(atomcraft)的重要工具。为了了解其机理,选择了场蒸发阈值从大到小有代表性的钨、铂、金、铜做针尖,扫描过程中在针尖与石墨表面之间施加针尖为正的脉冲电压,获得了一些新现象,并对实验结果作了比较,从而在一定程度上确定了脉冲制STM表面修饰实验中针尖与样品之间电场的重要作用。
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| 关 键 词： | 扫描隧道显微镜 表面修饰 |
SURFACE MODIFICATION ON GRAPHITE WITH SCANNING TUNNELING MICROSCOPY |
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| Ma Zili,Zhu Changxin,Shen Jian,Pang Shijin. SURFACE MODIFICATION ON GRAPHITE WITH SCANNING TUNNELING MICROSCOPY[J]. JOurnal of Vacuum Science and Technology, 1993, 0(1) |
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| Authors: | Ma Zili Zhu Changxin Shen Jian Pang Shijin |
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| Abstract: | STM has been proved to be a powerful method for surface modification and atomcraft. In order to study the mechanism of surface modification on materials with STM, we use W, Pt, Au and Cu tips as the STM tips. The field evaporating threshold values of these four materials have a tendency to be sequentially smaller. Voltage pulses are applied between the tip and the sample while scanning, and some new phenomenon have been found. Detailed explanations are given. |
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| Keywords: | Scanning tunneling microscopy Surface modification |
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