Physics
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..899...34g&link_type=abstract
SIXTH INTERNATIONAL CONFERENCE OF THE BALKAN PHYSICAL UNION. AIP Conference Proceedings, Volume 899, pp. 34-36 (2007).
Physics
Interactions Of Atoms And Molecules With Surfaces, Photon And Electron Emission, Neutralization Of Ions, Atomic And Molecular Beam Sources And Techniques
Scientific paper
1D and 2D reflection gratings (Permalloy stripes or dots deposited on silicon), immersed in an external homogeneous static magnetic field, are used to study 1D and 2D diffraction of fast metastable helium atoms He* (23S1). Both the grazing incidence used here and the repulsive potential (for sub-level m = -1) generated by the magnetisation reduce the quenching effect. This periodically structured potential is responsible for the diffraction in the incidence plane as well as for the diffraction in the perpendicular plane.
Baudon Jacques
Bocvarski V.
Ducloy Martial
Grucker Jules
Karam J.-C.
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