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Published on: March 24, 2019
Atomic Manipulation on a Highly Corrugated Topological Insulator
Emma Grasser1, Adrian Weindl1, Alfred J Weymouth1
1University of Regensburg, Institute of Experimental and Applied Physics, Regensburg D-93053, Germany.
Abstract:
We report a mechanism of lateral manipulation of single Fe adatoms on the surface of the topological insulator Bi_{2}Se_{3} with atomic force microscopy. The Fe atoms are embedded within the sparsely packed surface layer, rendering them inaccessible to classical manipulation methods. Nevertheless, we find a manipulation mechanism in which the Fe atom is plucked from its adsorption site and can be pulled along the surface. We demonstrate the controllability of this pluck-pull manipulation by the construction of a small nanostructure.
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