Photoelectron spectroscopy of chromium-doped silicon cluster anions |
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Authors: | Zheng Weijun Nilles J Michael Radisic Dunja Bowen Kit H |
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Institution: | Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA. |
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Abstract: | The photoelectron spectra of chromium-doped silicon cluster anions, CrSi-(n), were measured over the size range, n=8-12. Their vertical detachment energies were measured to be 2.71, 2.88, 2.87, 2.95, and 3.18 eV, respectively. Our results support theoretical calculations by Khanna, Rao, and Jena Phys. Rev. Lett. 89, 016803 (2002)] which found CrSi12 to be an enhanced stability (magic) cluster with its chromium atom encapsulated inside a silicon cage and with its magnetic moment completely quenched by the effects of the surrounding cage. |
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