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Compact Scanning Tunneling Microscope with Large Scale Searching Capability for Mmultidisciplinary Applications
Wen-jie Meng,Qi Wang,Jing Zhang,Yu-bin Hou,Qing-you Lu
Author NameAffiliationE-mail
Wen-jie Meng High Magnetic Field Laboratory, Chinese Academy of Sciences and University of Science and Tech-nology of China, Hefei 230026, China  
Qi Wang Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China  
Jing Zhang High Magnetic Field Laboratory, Chinese Academy of Sciences and University of Science and Tech-nology of China, Hefei 230026, China  
Yu-bin Hou High Magnetic Field Laboratory, Chinese Academy of Sciences and University of Science and Tech-nology of China, Hefei 230026, China  
Qing-you Lu High Magnetic Field Laboratory, Chinese Academy of Sciences and University of Science and Tech-nology of China, Hefei 230026, China;Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Tech-nology of China, Hefei 230026, China;Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China qxl@ustc.edu.cn 
Abstract:
We present the design and performance of a home-built scanning tunneling microscope (STM), which is compact (66 mm tall and 25 mm in diameter), yet equipped with a 3D atomic precision piezoelectric motor in which the Z coarse approach relies on a high simplic-ity friction-type walker (of our own invention) driven by an axially cut piezoelectric tube. The walker is vertically inserted in a piezoelectric scanner tube (PST) with its brim laying at on the PST end as the inertial slider (driven by the PST) for the XZ (sample plane) motion. The STM is designed to be capable of searching rare microscopic targets (defects, dopants, boundaries, nano-devices, etc.) in a macroscopic sample area (square millimeters) under extreme conditions (low temperatures, strong magnetic elds, etc.) in which it ts. It gives good atomic resolution images after scanning a highly oriented pyrolytic graphite sample in air at room temperature.
Key words:  Scanning tunneling microscope  Large scale searching  Air STM  Electro-chemical STM
FundProject:
多学科应用可大范围搜索的紧凑型扫描隧道显微镜
孟文杰,王琦,张晶,侯玉斌,陆轻铀
摘要:
本文展示了结构紧凑的(高度为66 mm,直径为25 mm)扫描隧道显微镜,配备了一套拥有原子级分辨精度的三维压电马达。其中Z方向定位依靠的是自行发明的由轴向切割的压电扫描管驱动的摩擦型步进器。X-Y方向(即样品面方向)的移动是将Z向步进器作为一个惯性滑块垂直嵌入压电扫描管内同时一端平放在压电扫描管的顶部。其设计具有在极端条件下(低温、强磁场等)从宏观尺度样品区域(平方毫米级别)搜索微观靶向(缺陷位、掺杂位、边界及纳米器件等)的能力。在室温大气下对高定向热解石墨进行测量,得到了高分辨率的原子图像.
关键词:  扫描隧道显微镜  大范围搜索  空气中扫描隧道显微  电化学扫描隧道显微镜
DOI:10.1063/1674-0068/29/cjcp1603041
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