Manipulating low-dimensional materials down to the level of single atoms with electron irradiation
arXiv:1703.02429 · doi:10.1016/j.ultramic.2017.03.005
Abstract
Recent advances in scanning transmission electron microscopy (STEM) instrumentation have made it possible to focus electron beams with sub-atomic precision and to identify the chemical structure of materials at the level of individual atoms. Here we discuss the dynamics that are observed in the structure of low-dimensional materials under electron irradiation, and the potential use of electron beams for single-atom manipulation. As a demonstration of the latter capability, we show how momentum transfer from the electrons of a 60-keV Ångström-sized STEM probe can be used to move silicon atoms embedded in the graphene lattice with atomic precision.
partly review (Fig. 1-3) and partly new results (Fig. 4-5)
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