A stable scanning tunneling microscope designed for investigations of organic thin films in air
A stable scanning tunneling microscope designed for investigations of organic thin films in air
复制标题
专为研究空气中有机薄膜而设计的稳定扫描隧道显微镜
DOI：
10.1063/1.1147892
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发表时间：
1997
影响因子：
1.6
通讯作者：
H. Fujiyasu
中科院分区：
文献类型：
--
作者：
A. Sasaki;F. Iwata;A. Katsumata;T. Akiyama;H. Fujiyasu
建立了一种新的、稳定的扫描隧道显微镜（STM）系统，用于研究空气中的有机薄膜。STM单元由Macor制成，Macor是可加工的陶瓷，具有小的热膨胀系数和高的机械刚度。利用5个叠层压电传感器（PZT）实现了3 μm范围内的三维位置粗调。十字型配置用于防止X和y方向位移机构的热效应。为了实现高分辨率，使用管型PZT执行x、y和z方向位移。管PZT的z方向具有24.4kHz的高机械谐振频率。因此，该STM单元是机械刚性的，并且允许在机械干扰（声音和机械振动）下稳定操作。此外，该STM单元可以通过使用普通运算放大器控制24小时或更长时间，因为热效应得到了补偿。STM系统还可以...
A new and stable scanning tunneling microscope (STM) system has been constructed for the investigation of thin organic films in air. The STM unit is made of Macor, which is machinable ceramic and has a small thermal expansion coefficient and a high mechanical stiffness. Three-dimensional coarse position adjustment (within 3 μm) is carried out using five stacked piezoelectric transducers (PZTs). A cross-type configuration is used to prevent the thermal effect of the x- and y-direction displacement mechanism. In order to achieve high resolution, x-, y-, and z-direction displacements are performed using a tube-type PZT. The z direction of the tube PZT has a high mechanical resonant frequency of 24.4 kHz. Therefore, this STM unit is mechanically rigid, and allows stable operation under mechanical disturbances (sound and mechanical vibration). Moreover, this STM unit can be controlled for 24 h or longer by using an ordinary operational amplifier, because thermal effects are compensated. The STM system can also...