Effect of parallel velocity on charge fraction in ion-surface scattering
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Cited by (147)
Dynamics conditions for channeling during H<sup>-</sup> scattering on Cu(111)
2013, Surface ScienceCitation Excerpt :In general, scattering experiments are performed with neutrals or positive ions. However, many experiments [10–14] have shown that the final charge state of scattered particles does not depend on the charge state of incident particles (the so-called “memory loss”), and it is mainly the second half of the trajectory, the one that “decides” on the final state of charge. Therefore, independent of the charge state of the beginning ions in our calculation, the negative ion fraction should not be affected.
Negative ions, energy loss, and electron emission during grazing scattering of fast H and He atoms from a clean and oxidized NiAl(1 1 0) surface
2011, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and AtomsCitation Excerpt :This is in accord with the observations for scattering from bulk crystals as indicated by the black and dashed curves which represent scaled data for scattering from a LiF(0 0 1) surface (negative ion fractions reduced by a factor of 10) [22] and an Al(1 1 1) surface (negative ion fractions enhanced by factor of 2) [23]. The data for clean metal surfaces can be described by a charge transfer model where the kinematically assisted electron capture and loss can be illustrated by a shifted Fermi sphere in momentum space [2,20,24]. Furthermore, capture and loss show exponentially decaying transition rates with the distance from the surface so that effective charge transfer is dominated by the equilibrium population at a defined distance from the surface.
Scattering of F atoms and anions on a TiO<inf>2</inf>(1 1 0) surface
2009, Surface ScienceExcited states in the alkali/noble metal surface systems: A model system for the study of charge transfer dynamics at surfaces
2007, Progress in Surface ScienceCitation Excerpt :Another effect of the (1 1 1) surfaces is due to the role played by the surface state in the collisional charge transfer. In the case of fast collisions in grazing angle geometry, the large velocity component parallel to the surface leads to the so-called parallel velocity assisted electron transfer process [14,133,134]. The two-dimensional character of the surface state leads to qualitative changes in this process which have been observed and theoretically accounted for in a few systems including H− formation and alkali positive ions neutralisation in grazing scattering from Cu(1 1 1) surfaces [91,135].
Charge transfer in grazing scattering on clean and oxygen covered Cu(1 1 0) surfaces: Velocity effects
2005, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and AtomsCharge states of multicharged Cs ions after grazing scattering from a Cu(111) surface
2003, Physics Letters, Section A: General, Atomic and Solid State Physics
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On leave of absence from Faculty of Engineering Science, Osaka University, Toyonaka, Osaka, Japan.