| 压电陶瓷对STM图像的影响及计算机校正 |
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| 引用本文： | 江月山,王晓光,杨乃恒,高聚宁,刘宁,杨海强,时东霞,庞世瑾. 压电陶瓷对STM图像的影响及计算机校正[J]. 真空科学与技术学报, 1997, 0(4) |
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| 作者姓名： | 江月山 王晓光 杨乃恒 高聚宁 刘宁 杨海强 时东霞 庞世瑾 |
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| 摘 要： | 在很多情况下，扫描隧道显微镜（STM）图像的几何形貌方面的误差主要是由压电陶瓷的漂移、X扫描器和Y扫描器的压电系数的不一致性和压电陶瓷扫描时的非正交性引起的。本文建立了一种物理数学模型来校正这些误差，取得了满意的结果。即使在漂移的状态下，也可以利用已知结构的表面对STM仪器进行校准（例如，高定向石墨表面）。用校准以后的STM仪器，可以获得样品表面的真实图像，并使对样品进行原子级的测量成为可能。
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| 关 键 词： | 扫描隧道显微镜图像 压电陶瓷 模型 |
Computer Correction for Distorted STM Images Caused by Piezoceramics |
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| Jiang Yueshan,Wang Xiaoguang,Yang Naiheng. Computer Correction for Distorted STM Images Caused by Piezoceramics[J]. JOurnal of Vacuum Science and Technology, 1997, 0(4) |
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| Authors: | Jiang Yueshan Wang Xiaoguang Yang Naiheng |
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| Abstract: | In quite a few cases,the image distortion of a scanning tunneling microscope(STM)is essentially caused by thermal drift,the different piezoelectric constants between the X and Y scanners and the nonorthogonal scanning. A physical and mathematical model is proposed to correct such distortions,with satisfactory results. Using this model,one can perform the STM calibration with a known surface structure (for example,the highly oriented pyro1ytic graphite surface) even in the presence of a drift. Using such a calibrated STM and the described model,it is possible to obtain the real STM driage and make measurements for unknown surfaces on the atomic scale. |
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| Keywords: | STM image Piezoceramics Model |
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