Low-energy ion scattering at surfaces

Surface structure analysis of atomically smoothBaBiO3Films

“…The insulating nature of the film and the use of alkali ion source beam could be responsible for this effect. 16 Note also that the steep decrease in the Ba R signal between Φ = 5 0 and 10 0 seen in Fig. 3 is consistent with the disappearance of the K S (Ba) peak at t ≃ 9.8µs in the TOF-SARS data at θ = 27 0 from Fig.…”

“…The latter problem is related to the fact that it is hard to quantify the yield of ionic fraction which, moreover, could be itself an anisotropic function with respect to the orientation of the crystallographic axes. 16 The answer to the first question is given in Fig. 3.…”

“…However, because MSRI detects only ions, one should worry about possible anisotropic neutralization effects which makes a quantitative interpretation problematic. 16 In fact this aspect is a long standing problem in ion based mass spectrometry affecting both compositional and structural studies.…”

Slow multicharged ions hitting a solid surface: From hollow atoms to novel applications

“…Nature and intensity ofthe resulting interactions depend both on the kinetic and the potential energy which is carried bythe projectile toward the surface. This can result in, e.g., sputtering, electron-and secondary ion emission, and elastic and inelastic projectile scattering (for details see [1,2]). …”

Internal electronic structure of adatoms on Fe(110) and Fe(100) surfaces: A low-energyLi+scattering study

“…10 As a surface analytical method, low-energy ion scattering has the advantage of extreme surface specificity. 11 In addition to surface composition and structure analysis, neutralization during low-energy ion scattering can be employed to probe the local charge states of adsorbates on surfaces, especially when alkali ions are used as the projectiles. [12][13][14] This is because the alkali ns valence levels overlap the metal Fermi level so that resonant charge transfer ͑RCT͒ dominates over the other charge transfer processes.…”