White S C, Singh U R, Wahl P
Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, D-70569 Stuttgart, Germany.
Rev Sci Instrum. 2011 Nov;82(11):113708. doi: 10.1063/1.3663611.
We have developed a measurement head for scanning tunneling microscopy (STM) and specifically for spectroscopic imaging STM which is optimized for high mechanical stiffness and good thermal conductivity by choice of material. The main components of the microscope head are made of sapphire. Sapphire has been chosen from several competing possibilities based on finite element modeling of the fundamental vibrational modes of the body. We demonstrate operation of the STM head in topographic imaging and tunneling spectroscopy at temperatures down to below 2 K.
我们已经开发出一种用于扫描隧道显微镜（STM）的测量头，特别是用于光谱成像STM的测量头，它通过材料选择在机械刚度和热导率方面进行了优化。显微镜头的主要部件由蓝宝石制成。基于主体基本振动模式的有限元建模，从几种竞争材料中选择了蓝宝石。我们展示了该STM测量头在低至2K以下温度下的形貌成像和隧道光谱操作。
