IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Phonon contribution to grazing incidence fast atom diffraction
Autor/es:
M. S. GRAVIELLE; J. E. MIRAGLIA
Lugar:
Deauville
Reunión:
Conferencia; XXXI International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC); 2019
Institución organizadora:
International Committee of ICPEAC
Resumen:
We address the effect of lattice vibrations of the crystal on grazing incidence fast atom diffraction (GIFAD) from insulator surfaces. To describe the phonon contribution to GIFAD we introduce a semi-quantum method, named Phonon- Surface Initial Value Representation (P-SIVR), which represents the surface with a harmonic crystal model, while the scattering process is given by the Surface Initial Value Representation approach including phonon excitations. P-SIVR results for Ne/LiF(001) are compared with other theoretical methods and available experiments.