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Abstract:

Diffraction patterns produced by grazing scattering of fast N atoms from a Ag(111) surface are investigated by employing the surface eikonal approximation. This method is a distorted-wave theory that takes into account the coherent addition of contributions coming from different projectile paths. In the model the projectile-surface potential is obtained from an accurate density-functional theory calculation. The dependence of the scattered projectile spectra on impact energy and incidence channel is analyzed, and possible incident direction and energy range for the observation of the interference patterns are predicted. In addition, it is found that as a result of the high reactivity of N atoms, asymmetries of the surface potential might be detected through their effects on diffraction patterns. © 2010 The American Physical Society.

Registro:

Documento: Artículo
Título:Diffraction of swift atoms after grazing scattering from metal surfaces: N/Ag(111) system
Autor:Gravielle, M.S.; Bocan, G.A.; Muiño, R.D.
Filiación:Instituto de Astronomía y Física del Espacio (CONICET-UBA), Departamento de Fíica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, Consejo Nacional de Investigaciones Cientiaficas y Teanicas, Donostia Int. Phy. Cent. (DIPC), Donostia, S.C. de Bariloche, Río Negro, Argentina
Donostia International Physics Center (DIPC), Centro de Física de Materiales CSIC-UPV/EHU, San Sebastián, Spain
Palabras clave:Ag(111) surface; Coherent addition; Density-functional theory calculations; Distorted-wave theory; Eikonal approximations; Energy ranges; Grazing scattering; High reactivity; Impact energy; Interference patterns; Metal surfaces; Density functional theory; Diffraction patterns; Interferometry; Projectiles; Surface potential; Surface properties; Atoms; Atoms; Density functional theory
Año:2010
Volumen:82
Número:5
DOI: http://dx.doi.org/10.1103/PhysRevA.82.052904
Título revista:Physical Review A - Atomic, Molecular, and Optical Physics
Título revista abreviado:Phys Rev A
ISSN:10502947
CODEN:PLRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v82_n5_p_Gravielle

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Citas:

---------- APA ----------
Gravielle, M.S., Bocan, G.A. & Muiño, R.D. (2010) . Diffraction of swift atoms after grazing scattering from metal surfaces: N/Ag(111) system. Physical Review A - Atomic, Molecular, and Optical Physics, 82(5).
http://dx.doi.org/10.1103/PhysRevA.82.052904
---------- CHICAGO ----------
Gravielle, M.S., Bocan, G.A., Muiño, R.D. "Diffraction of swift atoms after grazing scattering from metal surfaces: N/Ag(111) system" . Physical Review A - Atomic, Molecular, and Optical Physics 82, no. 5 (2010).
http://dx.doi.org/10.1103/PhysRevA.82.052904
---------- MLA ----------
Gravielle, M.S., Bocan, G.A., Muiño, R.D. "Diffraction of swift atoms after grazing scattering from metal surfaces: N/Ag(111) system" . Physical Review A - Atomic, Molecular, and Optical Physics, vol. 82, no. 5, 2010.
http://dx.doi.org/10.1103/PhysRevA.82.052904
---------- VANCOUVER ----------
Gravielle, M.S., Bocan, G.A., Muiño, R.D. Diffraction of swift atoms after grazing scattering from metal surfaces: N/Ag(111) system. Phys Rev A. 2010;82(5).
http://dx.doi.org/10.1103/PhysRevA.82.052904