Multiply charged neon clusters: failure of the liquid drop model?
Abstract
We have analyzed the stability and fission dynamics of multiply charged neon cluster ions. The critical sizes for the observation of long-lived ions are n 2 = 284 and n 3 = 656 for charge states 2 and 3, respectively, a factor 3 to 4 below the predictions of a previously successful liquid-drop model. The preferred fragment ions of fission reactions are surprisingly small ( 2 ≤ n ≤ 5 ); their kinetic energy distributions peak at 200 meV or below. The size of these fragments and their average kinetic energies are much less than predicted by the liquid-drop model.
Department
Physics
Publication Date
1-8-2007
Journal Title
Physical Reviw Letters
Publisher
APS Physics
Digital Object Identifier (DOI)
Document Type
Article
Recommended Citation
I. Mähr, F. Zappa, S. Denifl, D. Kubala, O. Echt, T. D. Märk, P. Scheier, Multiply charged neon clusters: failure of the liquid drop model?, Phys. Rev. Lett. 98 (2007) 023401, DOI: 10.1103/PhysRevLett.98.023401.