Abstract
We report the observation of doubly charged clusters below the kinetic critical size for Coulomb fission. Ultraviolet irradiation of cold, singly charged alkali-halide clusters efficiently generates the corresponding doubly charged clusters, allowing detection of a range of CsI and KBr clusters above and below the critical size, nc=19. These include an island of particularly high stability, n=12-13, that can be explained by computed structures. By varying the photon energy, we have also demonstrated the role of excess energy in determining fission decay rates.
Original language | English (US) |
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Pages (from-to) | 535-540 |
Number of pages | 6 |
Journal | Chemical Physics Letters |
Volume | 196 |
Issue number | 6 |
DOIs | |
State | Published - Aug 28 1992 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy
- Physical and Theoretical Chemistry