Abstract:
Emerging charge states of He and Li ions impinging with grazing incidence on a SnTe surface are calculated at high impact velocities. The charge state distribution is obtained as result of the interplay of two atomic processes: electron capture from bound states of the topmost surface atoms and electron loss from the bound states of the projectile due to collisions with the surface atoms. At high energies we find that the projectile leaves the surface with a charge state larger than the quasiequilibrium charge state reached in the vicinity of the surface. We explain this behavior in terms of the different ranges of capture and loss mechanisms. As the projectile escapes from the surface, the balance between these two processes is broken: capture is no longer effective, and loss survives ionizing the projectile. Comparisons with the experiments are presented and discussed. © 2000 The American Physical Society.
Registro:
Documento: |
Artículo
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Título: | Emerging charge state after grazing collisions of heavy ions on SnTe surfaces |
Autor: | Montanari, C.C.; Gravielle, M.S.; Rodríguez, V.D.; Miraglia, J.E. |
Filiación: | Instituto de Astronomía y Física del Espacio, Consejo Nacional de Investigaciones Científicas y Técnicas, Casilla de Correo 67, sucursal 28, Buenos Aires, 1428, Argentina Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Buenos Aires, Buenos Aires, Argentina
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Año: | 2000
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Volumen: | 61
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Número: | 2
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Página de inicio: | 8
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DOI: |
http://dx.doi.org/10.1103/PhysRevA.61.022901 |
Título revista: | Physical Review A - Atomic, Molecular, and Optical Physics
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Título revista abreviado: | Phys Rev A
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ISSN: | 10502947
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v61_n2_p8_Montanari |
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Citas:
---------- APA ----------
Montanari, C.C., Gravielle, M.S., Rodríguez, V.D. & Miraglia, J.E.
(2000)
. Emerging charge state after grazing collisions of heavy ions on SnTe surfaces. Physical Review A - Atomic, Molecular, and Optical Physics, 61(2), 8.
http://dx.doi.org/10.1103/PhysRevA.61.022901---------- CHICAGO ----------
Montanari, C.C., Gravielle, M.S., Rodríguez, V.D., Miraglia, J.E.
"Emerging charge state after grazing collisions of heavy ions on SnTe surfaces"
. Physical Review A - Atomic, Molecular, and Optical Physics 61, no. 2
(2000) : 8.
http://dx.doi.org/10.1103/PhysRevA.61.022901---------- MLA ----------
Montanari, C.C., Gravielle, M.S., Rodríguez, V.D., Miraglia, J.E.
"Emerging charge state after grazing collisions of heavy ions on SnTe surfaces"
. Physical Review A - Atomic, Molecular, and Optical Physics, vol. 61, no. 2, 2000, pp. 8.
http://dx.doi.org/10.1103/PhysRevA.61.022901---------- VANCOUVER ----------
Montanari, C.C., Gravielle, M.S., Rodríguez, V.D., Miraglia, J.E. Emerging charge state after grazing collisions of heavy ions on SnTe surfaces. Phys Rev A. 2000;61(2):8.
http://dx.doi.org/10.1103/PhysRevA.61.022901