Abstract
Using first-principles calculations, we unveil an atomistic nucleation process of monoatomic Mn nanowire self-assembly on Si(001). We find that Mn adatoms form magic 3n+1 atom dense trimerlike linear chains (DTLCs) driven by pedestal site adsorption. Moreover, the length of DTLCs is limited by a competing process to form three-dimensional D3h-Mn5 clusters in early stages. These results establish a new structural model distinct from the dimerlike linear chains for III and IV group elements on Si(001) and provide a natural explanation for recent experimental observations.
Original language | English |
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Article number | 116102 |
Journal | Physical review letters |
Volume | 105 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2010 Sep 8 |
ASJC Scopus subject areas
- Physics and Astronomy(all)