Magic numbers of atoms in surface-supported planar clusters |
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Authors: | Chiu Ya-Ping Huang Li-Wei Wei Ching-Ming Chang Chia-Seng Tsong Tien-Tzou |
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Institution: | Institute of Physics, Academia Sinica, Taiwan, Republic of China. jasonc@sinica.edu.tw |
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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. |
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