title: Evidence for F(-) formation by simultaneous double-electron capture during scattering of F(+) from a LiF(001) surface.
abstract: Slow F(+) ions (v<0.1 a.u.) scattered from a clean and flat LiF(001) surface under a grazing angle of incidence exhibit a high probability for forming F(-) ions in the reflected beam, whereas no negative ions are found for neutral F(0) projectiles. From detailed studies of projectile energy loss and charge transfer, we find evidence for a correlated double-electron capture process in the formation of the F(-) ions.
authors.affiliation: Laboratoire des Collisions Atomiques et Moléculaires (CNRS UMR 8625), Batiment 351, Université Paris Sud, F-91405 Orsay Cedex, France. roncin@lcam.u-psud.fr
authors.forename: P
authors.initials: P
authors.lastname: Roncin
authors.forename: A G
authors.initials: AG
authors.lastname: Borisov
authors.forename: H
authors.initials: H
authors.lastname: Khemliche
authors.forename: A
authors.initials: A
authors.lastname: Momeni
authors.forename: A
authors.initials: A
authors.lastname: Mertens
authors.forename: H
authors.initials: H
authors.lastname: Winter