Phys. Rev. Lett. 89, 116102 (2002) [4 pages]Arsenic Flux Dependence of Island Nucleation on InAs(001)Received 15 May 2001; published 26 August 2002 The initial stages of InAs(001) homoepitaxial growth are investigated using a combination of kinetic Monte Carlo simulations based on ab initio density functional theory and scanning tunneling microscopy. In the two dimensional island nucleation mode investigated, the island number density is found to decrease with increasing As. This behavior is explained by a suppression of the effective In-adatom density leading to a reduction in island nucleation. The relevant microscopic processes responsible for this reduction are identified. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.116102
DOI:
10.1103/PhysRevLett.89.116102
PACS:
68.55.–a, 68.37.Ef, 81.15.Aa, 81.15.Hi
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