Two-dimensional Sb cluster superlattice on Si substrate fabricated by a two-step method |
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| Institution: | 1.CAS Key Laboratory of Strongly Coupled Quantum Matter Physics, Department of Physics, University of Science and Technology of China, Hefei 230026, China;2.International Center for Quantum Design of Functional Materials(ICQD), University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | Nanoclusters consisting of a few atoms have attracted a lot of research interests due to their exotic size-dependent properties. Here, well-ordered two-dimensional Sb cluster superlattice was fabricated on Si substrate by a two-step method and characterized by scanning tunneling microscopy. High resolution scanning tunneling microscope measurements revealed the fine structures of the Sb clusters, which consist of several Sb atoms ranging from 2 to 7. Furthermore, the electronic structure of the nanocluster displays the quantized energy-level which is due to the single-electron tunneling effects. We believe that the fabrication of Sb cluster superlattice broadens the species of the cluster superlattice and provides a promising candidate to further explore the novel physical and chemical properties of the semimetal nanocluster. |
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| Keywords: | microstructure nanoparticles cluster superlattice scanning tunneling microscope |
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