STM images of 0.6 ML Fe on Au(111) surface by 8 L Xe BLAG at 33 K with subsequent 300 K annealing. For comparison, (a) reveals the growth result on surface combing terraces and steps. (b) and (c) are magnified images at steps. (d) and (e) exhibit line profiles along and across the steps, as indicated in (a). The cross sections indicates clearly the nanoparticles nucleate at the descending edges.
Height-diameter plot of Fe nanoparticles on the terraces and the steps, respectively, for comparison.
(a) STM image of 0.35 ML Fe deposited on Au(111) stepped surface at 200 K with subsequent 300 K annealing (two-step growth). (b) is the statistics of island density (number/100 nm step length), as a function of step width, indicating two preferred step widths, i.e., and . [(c) and (d)] STM images of 0.35 ML Fe nanostripes grown on wide and narrow steps, respectively.
STM images of Fe on Au(111) surface by multistep growth method, on 0.05 ML seeds. (a) The growth result on terrace. The section line profile indicates the regular biatomic height elongated islands. (b) The growth result on regular steps. [(c) and (d)] The line profiles along and across the steps. (e) Magnified STM image, as indicated in (b).
Article metrics loading...
Full text loading...