The scanning tunneling microscope (STM) is an instrument with which one can image surfaces so finely that individual atoms are resolved. The STM can even move atoms about. The image on the left depicts the results of such a process. The images were obtained by scanning the surface with the same instrument.
- Tutorial: how the STM works
- Short history of STM and its siblings
Source of image: IBM Almaden Center website. Reproduced by permission of Don Eigler.