title: Magic numbers of atoms in surface-supported planar clusters.
abstract: Surface-supported planar clusters can sprout active research and create numerous applications in the realm of nanotechnology. Exploitation of these clusters will be more extended if their properties on a supported substrate are thoroughly apprehended, and if they can be fabricated in a controllable way. Here we report finding the magic numbers in two-dimensional Ag clusters grown on Pb quantum islands. We demonstrate, with the images and energy spectra of atomic precision, the transition from electronic origin to a geometric one within the same system. Applying the magic nature, we can also produce a large array of planar clusters with well-defined sizes and shapes.
authors.affiliation: Institute of Physics, Academia Sinica, Taiwan, Republic of China. jasonc@sinica.edu.tw
authors.forename: Ya-Ping
authors.initials: YP
authors.lastname: Chiu
authors.forename: Li-Wei
authors.initials: LW
authors.lastname: Huang
authors.forename: Ching-Ming
authors.initials: CM
authors.lastname: Wei
authors.forename: Chia-Seng
authors.initials: CS
authors.lastname: Chang
authors.forename: Tien-Tzou
authors.initials: TT
authors.lastname: Tsong