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Dimerization of Ag adatoms on Si(100) at surprisingly low temperature due to adatom migration on top of Si-dimer rows
Alejandro Peña-Torres, Michail Stamatakis, Hannes Jónsson
The puzzling experimental observations of Ag addimer formation on the Si(100) surface upon vapor deposition at low temperature, even as low as 140 K, reported by Huang et al. [Phys…
Indirect Mechanism of Au adatom Diffusion on the Si(100) Surface
Alejandro Peña-Torres, Abid Ali, Michail Stamatakis +1
Calculations of the diffusion of a Au adatom on the dimer reconstructed Si(100)-2x1 surface reveal an interesting mechanism that differs significantly from a direct path between op…
From AC-STEM Image to 3D Structure: A Systematic Analysis of Au55 nanocluster
Kusse S. Bersha, Alejandro Peña-Torres, Hannes Jónsson
Aberration-corrected scanning electron microscopy (AC-STEM) can provide valuable information on the atomic structure of nanoclusters, an essential input for gaining an understandin…