Speaker
Peng PAN
(ISMO-CNRS-UniversitéPariSaclay)
Description
Schematic representation of grazing incidence diffraction (GIFAD) discovered in the group by Patrick Rousseau. At grazing incidence, the fast He projectile with keV energy is diffracted by the well-ordered rows of atoms by successive gentle collisions. The He projectile is repelled by the surface electronic density so that GIFAD can be seen as a helium tip AFM operated in the reciprocal space.
Atomic diffraction spots have two component, one is point-like corresponding to elastic scattering, the other one, the inelastic component, is broader and consist here in here in vertical stripes pointing upward or downward.
| Language | English |
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Author
Peng PAN
(ISMO-CNRS-UniversitéPariSaclay)
Co-author
Dr
Philippe RONCIN
(ISMO-CNRS-UnivParisSaclay)
