Abstract:
We investigate the electron capture from insulator surfaces under grazing impact conditions. The eikonal-impulse approximation is used to describe coherent electron exchange from surface ions. In the model the transition amplitude is expressed as the sum of atomic transition amplitudes, each one associated with capture from a different lattice site. The method is applied to 100 keV protons colliding on LiF surfaces. Strong interference effects as a function of the crystal orientation were found for the partial capture from a given initial crystal state. However, these interference structures disappear when the contributions from different crystal states add up to obtain the total capture probability from the surface band. © 2005 The American Physical Society.
Registro:
Documento: |
Artículo
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Título: | Interference effects in electron capture from insulator surfaces |
Autor: | Gravielle, M.S.; Miraglia, J.E. |
Filiación: | Inst. de Astronomia y Fis. del E., Consejo Natl. de Invest. Cie. y Tec., Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires, Argentina Departamento de Física, FCEN, Universidad de Buenos Aires, Buenos Aires, Argentina
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Palabras clave: | Atomic transition; Crystal foils; Electron capture; Insulator surfaces; Eigenvalues and eigenfunctions; Electrons; Ionization; Probability; Protons; Spectrum analysis; Trajectories; Surfaces |
Año: | 2005
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Volumen: | 71
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Número: | 3
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DOI: |
http://dx.doi.org/10.1103/PhysRevA.71.032901 |
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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CODEN: | PLRAA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v71_n3_p_Gravielle |
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Citas:
---------- APA ----------
Gravielle, M.S. & Miraglia, J.E.
(2005)
. Interference effects in electron capture from insulator surfaces. Physical Review A - Atomic, Molecular, and Optical Physics, 71(3).
http://dx.doi.org/10.1103/PhysRevA.71.032901---------- CHICAGO ----------
Gravielle, M.S., Miraglia, J.E.
"Interference effects in electron capture from insulator surfaces"
. Physical Review A - Atomic, Molecular, and Optical Physics 71, no. 3
(2005).
http://dx.doi.org/10.1103/PhysRevA.71.032901---------- MLA ----------
Gravielle, M.S., Miraglia, J.E.
"Interference effects in electron capture from insulator surfaces"
. Physical Review A - Atomic, Molecular, and Optical Physics, vol. 71, no. 3, 2005.
http://dx.doi.org/10.1103/PhysRevA.71.032901---------- VANCOUVER ----------
Gravielle, M.S., Miraglia, J.E. Interference effects in electron capture from insulator surfaces. Phys Rev A. 2005;71(3).
http://dx.doi.org/10.1103/PhysRevA.71.032901