@article {Fu:2008:1533-4880:608,
title = "Reconstructed Structures of Nanosized Co Islands on Ag/Ge(111) 3 \texttimes 3 Surfaces",
journal = "Journal of Nanoscience and Nanotechnology",
parent_itemid = "infobike://asp/jnn",
publishercode ="asp",
year = "2008",
volume = "8",
number = "2",
publication date ="2008-02-01T00:00:00",
pages = "608-612",
itemtype = "ARTICLE",
issn = "1533-4880",
eissn = "1533-4899",
url = "https://www.ingentaconnect.com/content/asp/jnn/2008/00000008/00000002/art00020",
doi = "doi:10.1166/jnn.2008.A045",
keyword = "SILVER, COBALT, LOW ENERGY ELECTRON DIFFRACTION, METAL-SEMICONDUCTOR MAGNETIC THIN FILM STRUCTURES, GERMANIUM, SCANNING TUNNELLING MICROSCOPY",
author = "Fu, Tsu-Yi and Tsay, Sung-Lin and Lin, Chun-Liang",
abstract = "Structural evolution of Co/Ag/Ge(111) at high temperatures was studied by using scanning tunneling microscopy and low energy electron diffraction. The 3 \texttimes 3-Ag layer between the substrate Ge(111) and Co adatoms can avoid the formation of CoGe compounds below
800 K. The Co atoms nucleate to form islands where 13 \texttimes 13 or 2 \texttimes 2 reconstructions were observed after annealing between 373 K and 737 K. The 13 \texttimes 13 structure with mirror symmetry relative to [211], [11-2], and [1-21] axes was observed
for 12 layer Co islands. Co islands with over 2 layers appear 2 \texttimes 2 structure. All reconstruction structures of the nano-sized Co islands and substrate Ag/Ge(111) 3 \texttimes 3 surface were analyzed using the atomic hard sphere model. The bright protrusions of these
reconstructions all sit in the centers of Ag or Ge trimers, which were predicted to have maximum binding energy.",
}