An ultrahigh vacuum scanning tunneling microscope for surface science studies

Abstract
We describe the construction and operation of a scanning tunneling microscope designed in our laboratory that fits standard ultrahigh vacuum (UHV) systems as an add‐on instrument. Sample motion is accomplished by electrical signals, eliminating mechanical feedthroughs. Samples are easily transferred to a modified Varian manipulator for heating and interfacing with other surface science techniques. In situ tip replacement and sample transfer in and out of the UHV system is also possible.