A High Rigidity and Precision Scanning Tunneling Microscope with Decoupled XY and Z Scans.
A High Rigidity and Precision Scanning Tunneling Microscope with Decoupled XY and Z Scans.
复制标题
具有解耦 XY 和 Z 扫描功能的高刚性、高精度扫描隧道显微镜
作者：
Chen X;Guo T;Hou Y;Zhang J;Meng W;Lu Q
提出了一种新型扫描隧道显微镜（STM）扫描头结构，具有扫描精度高、刚性好等特点。核心结构包括一个压电管扫描器的象限类型（XY扫描）同轴容纳在一个压电管与单一的内部和外部电极（Z扫描）。它们固定在一端（称为公共端）。中空钽轴同轴地容纳在XY扫描管中，并且它们在两端相互固定。当XY扫描器扫描时，其自由端将使轴扫描，并且如果尖端从公共端突出足够短，则在公共端处同轴插入轴中的尖端将扫描较小的区域。解耦的XY和Z扫描对于较少的图像失真是期望的，并且机械地减小的扫描范围具有减少背景电子噪声对扫描仪的影响并提高尖端定位精度的优势。还显示了高质量的原子分辨率图像。
A new scan-head structure for the scanning tunneling microscope (STM) is proposed, featuring high scan precision and rigidity. The core structure consists of a piezoelectric tube scanner of quadrant type (for XY scans) coaxially housed in a piezoelectric tube with single inner and outer electrodes (for Z scan). They are fixed at one end (called common end). A hollow tantalum shaft is coaxially housed in the XY-scan tube and they are mutually fixed at both ends. When the XY scanner scans, its free end will bring the shaft to scan and the tip which is coaxially inserted in the shaft at the common end will scan a smaller area if the tip protrudes short enough from the common end. The decoupled XY and Z scans are desired for less image distortion and the mechanically reduced scan range has the superiority of reducing the impact of the background electronic noise on the scanner and enhancing the tip positioning precision. High quality atomic resolution images are also shown.
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影响因子：
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