Cai Weiwei, Pang Fei, Wang Jian, Liu Hui, Liang X J, Xue Q K, Chen D M
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Zhongguancun South Street No. 8, Haidian, Beijing 100080, China.
Rev Sci Instrum. 2007 Jun;78(6):065108. doi: 10.1063/1.2746821.
We present a dual scanning tunneling microscope (DSTM) system operating between 2.2 K and room temperature, in a split-coil superconducting magnetic field up to 12 T and in ultrahigh vacuum. The DSTM consists of two compact STMs, each having x, y, and z coarse positioning piezoelectric steppers with embedded capacitive positioning sensor for navigation. Each STM can be operated independently and can achieve atomic resolution. The DSTM and the sample is configured in a way that allows the magnetic field orientation to be varied continuously from normal to parallel to the sample surface. Together with the sample, the DSTM can form a nanometer scale three terminal setup for transport measurement.
我们展示了一种双扫描隧道显微镜(DSTM)系统,该系统可在2.2 K至室温之间、高达12 T的分裂线圈超导磁场以及超高真空中运行。DSTM由两个紧凑型STM组成,每个STM都有x、y和z轴粗定位压电步进器,并嵌入了用于导航的电容式定位传感器。每个STM都可以独立运行并能实现原子分辨率。DSTM和样品的配置方式使得磁场方向可以从垂直于样品表面连续变化到平行于样品表面。DSTM与样品一起可形成用于传输测量的纳米级三端装置。