Haptic-STM: a human-in-the-loop interface to a scanning tunneling microscope.
Identifieur interne : 002B89 ( Main/Merge ); précédent : 002B88; suivant : 002B90Haptic-STM: a human-in-the-loop interface to a scanning tunneling microscope.
Auteurs : Luís M A. Perdigão [Royaume-Uni] ; Alex SaywellSource :
- The Review of scientific instruments [ 1089-7623 ] ; 2011.
Abstract
The operation of a haptic device interfaced with a scanning tunneling microscope (STM) is presented here. The user moves the STM tip in three dimensions by means of a stylus attached to the haptic instrument. The tunneling current measured by the STM is converted to a vertical force, applied to the stylus and felt by the user, with the user being incorporated into the feedback loop that controls the tip-surface distance. A haptic-STM interface of this nature allows the user to feel atomic features on the surface and facilitates the tactile manipulation of the adsorbate/substrate system. The operation of this device is demonstrated via the room temperature STM imaging of C(60) molecules adsorbed on an Au(111) surface in ultra-high vacuum.
DOI: 10.1063/1.3600572
PubMed: 21806186
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