Grazing Incidence Fast Atom Diffraction (GIFAD): Doing RHEED with Atoms

Soulisse, Pierre; Rousseau, Patrick; Khemliche, H.; Roncin, P.

doi:10.1380/ejssnt.2010.101

Cited by 16 publications

(18 citation statements)

References 14 publications

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“…The diffraction pattern shows splittings in transverse direction, i.e., normal to the scattering plane of the incident beam. There are similarities to diffraction patterns observed for grazing scattering of keV-electrons (RHEED) [15].…”

Section: Classical and Quantum Scattering During The Interactions Of supporting

confidence: 65%

Studies on coherence and decoherence in Fast Atom Diffraction

Seifert

Lienemann

Schüller

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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Section: Classical and Quantum Scattering During The Interactions Of supporting

confidence: 65%

Studies on coherence and decoherence in Fast Atom Diffraction

Seifert

Lienemann

Schüller

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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“…This feature was demonstrated in studies on insulator [5,6] and semiconductor [48,49] surfaces with direct band gap. Recent work demonstrates that such a regime is also met for scattering from clean [50,51] and adsorbate covered [52,53] metal surfaces, as well as thin films on metal substrates [54].…”

Section: Discussionmentioning

confidence: 67%

Rumpling of LiF(001) surface from fast atom diffraction

et al. 2010

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Quantum diffraction of fast atoms scattered from the topmost layer of surfaces under grazing angles of incidence can be employed for the analysis of detailed structural properties of insulator surfaces. From comparison of measured and calculated diffraction patterns we deduce the rumpling of the topmost surface layer of LiF(001) (i.e., an inward shift of Li + ions with respect to F − ions). The effect of thermal vibrations on the measurement of rumpling is accounted for by ab initio calculations of the mean-square vibrational amplitudes of surface ions. At room temperature this leads to a reduction of the apparent rumpling by 0.008Å. We then obtain a rumpling of (0.05 ± 0.04)Å, which improves its accuracy achieved in previous work.

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“…The bright spots sitting on the Laue circle correspond to the elastically scattered intensity. The insets on the left show patterns [8,17] with larger streaks corresponding to inelastic regimes investigated here. aligned along a low index direction, the detector placed downstream shows a diffraction pattern.…”

Section: Introductionmentioning

confidence: 86%

Elastic and inelastic diffraction of fast atoms, Debye-Waller factor, and Mössbauer-Lamb-Dicke regime

Roncin

Debiossac

2017

Phys. Rev. B

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The diffraction of fast atoms at crystal surfaces is ideal for a detailed investigation of the surface electronic density. However, instead of sharp diffraction spots, most experiments show elongated streaks characteristic of inelastic diffraction. This paper describes these inelastic profiles in terms of individual inelastic collisions with surface atoms taking place along the projectile trajectory and leading to vibrational excitation of the local Debye oscillator. A quasi-elastic regime where only one inelastic event contributes is identified as well as a mixed quantum-classical regime were several inelastic collision are involved. These regimes describe a smooth evolution of the scattering profiles from sharp spots to elongated streaks merging progressively into the classical diffusion regime.

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Grazing Incidence Fast Atom Diffraction (GIFAD): Doing RHEED with Atoms

Cited by 16 publications

References 14 publications

Studies on coherence and decoherence in Fast Atom Diffraction

Studies on coherence and decoherence in Fast Atom Diffraction

Rumpling of LiF(001) surface from fast atom diffraction

Elastic and inelastic diffraction of fast atoms, Debye-Waller factor, and Mössbauer-Lamb-Dicke regime

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