Formation and characterization of quasi-free clusters |
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| Authors: | Guanghou Wang Fengqi Liu |
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| Affiliation: | 1. Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, People’s Republic of China
2. Center for Advanced Studies in Science and Technology of Microstructures, Nanjing, 210093, People’s Republic of China
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| Abstract: | The Si clusters are prepared by inert gas condensation method and then softly land on the mother skeleton of the porous silicon (PS), and thus quasi-free clusters are formed. Several new Raman peaks are observed and identified as surface modes of Si clusters and their combination with TA modes for the first time. Good agreement is achieved between the experimental observations and the calculated results. |
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