title: Arsenic flux dependence of island nucleation on InAs(001).
abstract: 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.
authors.affiliation: HRL Laboratories LLC, 3011 Malibu Canyon Road, Malibu, California 90265, USA.
authors.forename: Frank
authors.initials: F
authors.lastname: Grosse
authors.forename: William
authors.initials: W
authors.lastname: Barvosa-Carter
authors.forename: Jenna
authors.initials: J
authors.lastname: Zinck
authors.forename: Matthew
authors.initials: M
authors.lastname: Wheeler
authors.forename: Mark F
authors.initials: MF
authors.lastname: Gyure