Quantum interference in grazing scattering of swift He atoms from LiF(0 0 1) surfaces: Surface eikonal approximation
This work deals with the interference effects recently observed in grazing collisions of few-keV atoms with insulator surfaces. The process is studied within a distorted-wave method, the surface eikonal approximation, based on the use of the eikonal wave function and involving axial channeled trajec...
Guardado en:
| Autores principales: | , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0168583X_v267_n4_p610_Gravielle |
| Aporte de: |
| id |
todo:paper_0168583X_v267_n4_p610_Gravielle |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_0168583X_v267_n4_p610_Gravielle2023-10-03T15:06:29Z Quantum interference in grazing scattering of swift He atoms from LiF(0 0 1) surfaces: Surface eikonal approximation Gravielle, M.S. Miraglia, J.E. Channeling Diffraction Elastic scattering Surface Diffraction Elastic scattering Helium Projectiles Channeling Distorted waves Eikonal Eikonal approaches Eikonal approximations Grazing scatterings He atoms Helium atoms Initial conditions Insulator surfaces Interference effects Quantum interferences Surface rumpling Atoms This work deals with the interference effects recently observed in grazing collisions of few-keV atoms with insulator surfaces. The process is studied within a distorted-wave method, the surface eikonal approximation, based on the use of the eikonal wave function and involving axial channeled trajectories with different initial conditions. The theory is applied to helium atoms impinging on a LiF(0 0 1) surface along the 〈1 1 0〉 direction. The role played by the projectile polarization and the surface rumpling is investigated. We found that when both effects are included, the proposed eikonal approach provides angular projectile spectra in good agreement with the experimental findings. © 2008 Elsevier B.V. All rights reserved. Fil:Gravielle, M.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Miraglia, J.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0168583X_v267_n4_p610_Gravielle |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Channeling Diffraction Elastic scattering Surface Diffraction Elastic scattering Helium Projectiles Channeling Distorted waves Eikonal Eikonal approaches Eikonal approximations Grazing scatterings He atoms Helium atoms Initial conditions Insulator surfaces Interference effects Quantum interferences Surface rumpling Atoms |
| spellingShingle |
Channeling Diffraction Elastic scattering Surface Diffraction Elastic scattering Helium Projectiles Channeling Distorted waves Eikonal Eikonal approaches Eikonal approximations Grazing scatterings He atoms Helium atoms Initial conditions Insulator surfaces Interference effects Quantum interferences Surface rumpling Atoms Gravielle, M.S. Miraglia, J.E. Quantum interference in grazing scattering of swift He atoms from LiF(0 0 1) surfaces: Surface eikonal approximation |
| topic_facet |
Channeling Diffraction Elastic scattering Surface Diffraction Elastic scattering Helium Projectiles Channeling Distorted waves Eikonal Eikonal approaches Eikonal approximations Grazing scatterings He atoms Helium atoms Initial conditions Insulator surfaces Interference effects Quantum interferences Surface rumpling Atoms |
| description |
This work deals with the interference effects recently observed in grazing collisions of few-keV atoms with insulator surfaces. The process is studied within a distorted-wave method, the surface eikonal approximation, based on the use of the eikonal wave function and involving axial channeled trajectories with different initial conditions. The theory is applied to helium atoms impinging on a LiF(0 0 1) surface along the 〈1 1 0〉 direction. The role played by the projectile polarization and the surface rumpling is investigated. We found that when both effects are included, the proposed eikonal approach provides angular projectile spectra in good agreement with the experimental findings. © 2008 Elsevier B.V. All rights reserved. |
| format |
JOUR |
| author |
Gravielle, M.S. Miraglia, J.E. |
| author_facet |
Gravielle, M.S. Miraglia, J.E. |
| author_sort |
Gravielle, M.S. |
| title |
Quantum interference in grazing scattering of swift He atoms from LiF(0 0 1) surfaces: Surface eikonal approximation |
| title_short |
Quantum interference in grazing scattering of swift He atoms from LiF(0 0 1) surfaces: Surface eikonal approximation |
| title_full |
Quantum interference in grazing scattering of swift He atoms from LiF(0 0 1) surfaces: Surface eikonal approximation |
| title_fullStr |
Quantum interference in grazing scattering of swift He atoms from LiF(0 0 1) surfaces: Surface eikonal approximation |
| title_full_unstemmed |
Quantum interference in grazing scattering of swift He atoms from LiF(0 0 1) surfaces: Surface eikonal approximation |
| title_sort |
quantum interference in grazing scattering of swift he atoms from lif(0 0 1) surfaces: surface eikonal approximation |
| url |
http://hdl.handle.net/20.500.12110/paper_0168583X_v267_n4_p610_Gravielle |
| work_keys_str_mv |
AT graviellems quantuminterferenceingrazingscatteringofswiftheatomsfromlif001surfacessurfaceeikonalapproximation AT miragliaje quantuminterferenceingrazingscatteringofswiftheatomsfromlif001surfacessurfaceeikonalapproximation |
| _version_ |
1807319298460352512 |