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Materials Theory

arXiv:mtrl-th/9609010 (mtrl-th)
[Submitted on 25 Sep 1996]

Title:Diffusivity of Ga and Al adatoms on GaAs(001)

Authors:A. Kley, M. Scheffler
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Abstract: The diffusivity of Ga and Al adatoms on the (2x4) reconstructed GaAs(001) surface are evaluated using detailed ab initio total energy calculations of the potential energy surface together with transition state theory. A strong diffusion anisotropy is found, with the direction of fastest diffusion being parallel to the surface As-dimer orientation. In contrast to previous calculations we identify a short--bridge position between the two As atoms of a surface dimer as the adsorption site for Al and Ga adatoms.
Comments: 4 pages, 1 figures, to appear in "The Physics of Semiconductors"
Subjects: Materials Science (cond-mat.mtrl-sci)
Cite as: arXiv:mtrl-th/9609010
  (or arXiv:mtrl-th/9609010v1 for this version)
  https://doi.org/10.48550/arXiv.mtrl-th/9609010

Submission history

From: Max Petersen [view email]
[v1] Wed, 25 Sep 1996 16:41:28 UTC (65 KB)
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