Stability and fragmentation of multiply ionized clusters |
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Authors: | K. Hashimoto M. Okamoto K. Takayanagi |
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Affiliation: | (1) Takayanagi Particle Surface Project, ERATO, Japan Science and Technology Corporation, 2-13-3 Akebono, Tachikawa, Tokyo 190, Japan, JP;(2) Tokyo Institute of Technology, Materials Science and Engineering, 4259 Nagatuta, Midori-ku Yokohama, 226, Japan, JP |
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Abstract: | The stability of neutral, singly and multiply ionized silicon clusters, (N = 2-7, M = 0, , , ), has been investigated using an ab initio density functional method. We show that the fragmentation effect significantly affects the structure of mass-spectra of multiply ionized silicon clusters. For clusters, the clusters with a large fragmentation energy are found to correspond to the high peaks at N = 4 and 6 in mass-spectra. For clusters, a peak at N = 5 in mass-spectra has been predicted to be especially high. Received: 9 June 1997 / Revised: 8 January 1998 / Accepted: 25 February 1998 |
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Keywords: | PACS. 36.40.Qv Stability and fragmentation of clusters - 36.40.Wa Charged clusters |
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