An inelastic threshold in electron - alkali cluster collisions |
| |
| Authors: | V. Kasperovich K. Wong G. Tikhonov V.V. Kresin |
| |
| Affiliation: | (1) Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, USA, US |
| |
| Abstract: | An analysis of integral cross sections for slow electron collisions with neutral sodium clusters and nanoparticles reveals that, in addition to an effective negative ion formation channel, there exists a strong inelastic threshold-type process which appears above a collision energy of 1-1.3 eV. We show that it can be plausibly associated with the onset of direct electron-induced cluster fragmentation. This result highlights the importance of understanding the dynamics of electron-vibrational energy transfer in nanoclusters, including the relative probability of direct vs. statistical energy transfer. Received 24 November 2000 |
| |
| Keywords: | PACS. 36.40.-c Atomic and molecular clusters – 36.40.Qv Stability and fragmentation of clusters – 34.80.Ht Dissociation and dissociative attachment by electron impact |
| 本文献已被 SpringerLink 等数据库收录！ |
