A Tunning Forkfor STM/AFM measurements
Image of a quartz tunning fork with a STM tip at the end of a prong. This allows to simultaneously measure STM and dynamical AFM. http://journals.aps.org/rmp/abstract/10.1103/RevModPhys.75.949
The insets show SEM images of the tip apex after sharpening in a Fucus Ion Beam and the tip manipulation using in situ manipulators.