Jnawali, Giriraj; Wagner, Th.; Hattab, Hichem; Möller, Rolf; Horn-von Hoegen, Michael:
Nucleation and initial growth in the semimetallic homoepitaxial system of Bi on Bi(111),
2009
In: Physical review. B, Jg. 79 (2009), Heft 19, S. 193306
Artikel/Aufsatz in Zeitschrift2009Physik
Fakultät für Physik » Experimentalphysik
Zentrale wissenschaftliche Einrichtungen » Center for Nanointegration Duisburg-Essen (CENIDE)
Titel:
Nucleation and initial growth in the semimetallic homoepitaxial system of Bi on Bi(111),
Autor(in):
Jnawali, GirirajLSF; Wagner, Th.; Hattab, HichemLSF; Möller, RolfLSF; Horn-von Hoegen, MichaelLSF
Erscheinungsjahr
2009
DOI:

Abstract:

The nucleation and initial growth of the semimetallic homoepitaxial system of Bi(111) was studied at 130 K by scanning tunneling microscopy. The island density increases with the cubic root of coverage, i.e., nx∝Θ1/3, up to 5.5×1011 islands/cm2 at 0.23 bilayer (BL) coverage. We determined a surface diffusion coefficient of D=2.6×106 s−1. Additionally, a transition of the island shape from compact to quasifractal was observed at about 0.1 BL coverage. The transition island size was estimated to be 70 nm2.