Strong-field ionization of Li and Be: A time-dependent density functional theory with self-interaction correction
Journal
Chemical Physics
Journal Volume
391
Journal Issue
1
Pages
88-91
Date Issued
2011
Author(s)
Abstract
In the framework of the time-dependent density functional theory, we have performed 3D calculations of multiphoton ionization of Li and Be atoms by strong near-infrared laser fields. The results for the intensity-dependent probabilities of single and double ionization are presented. We make use of the time-dependent Krieger-Li-Iafrate exchange-correlation potential with self-interaction correction (TD-KLI-SIC). Such a potential possesses an integer discontinuity which improves description of the ionization process. However, we have found that the discontinuity of the TD-KLI-SIC potential is not sufficient to reproduce characteristic feature of double ionization. © 2011 Elsevier B.V. All rights reserved.
Type
journal article