Artículo

Archubi, C.D.; Arista, N.R."Theoretical models to calculate stopping and ionization ratios of H2+ molecules in solid targets" (2019) Physical Review A. 99(3)
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Abstract:

In this work we study the vicinage effects that arise in the interaction of molecular projectiles with solids, considering, in particular, the effects produced by the excitation of inner shells. For this purpose, we use two different approaches. On one side we extend the use of the semiclassical impact-parameter model for the excitation of atomic shells, considering quantum corrections and the role of target screening in the vicinage effects. On the other hand, we adapt our extended wave-packet model, developed in a previous work to the calculation of stopping ratios and ionization cross sections for correlated ions. This model introduces modifications to the wave-packet method originally proposed by Kaneko, using the Levine and Louie technique to take into account the energy gaps corresponding to the different atomic levels of the target. Finally, we add the contribution of valence electrons calculated with the Lindhard free-electron-gas model and compare with experimental results of vicinage effects in the energy-loss and ionization cross sections for hydrogen molecules interacting with C, Al, Si, Al2O3, and SiO2 targets. © 2019 American Physical Society.

Registro:

Documento: Artículo
Título:Theoretical models to calculate stopping and ionization ratios of H2+ molecules in solid targets
Autor:Archubi, C.D.; Arista, N.R.
Filiación:Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Instituto de Astronomía y Física Del Espacio, Pabellón IAFE, Buenos Aires, 1428, Argentina
Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Ciudad Universitaria, Buenos Aires, 1428, Argentina
Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica, S. C. de Bariloche, 8400, Argentina
Palabras clave:Alumina; Aluminum oxide; Electron gas; Electrons; Energy dissipation; Molecules; Silica; Wave packets; Free electron gas; Hydrogen molecule; Ionization cross section; Molecular projectiles; Quantum correction; Valence electron; Wave packet models; Wave-packet method; Ionization of gases
Año:2019
Volumen:99
Número:3
DOI: http://dx.doi.org/10.1103/PhysRevA.99.032702
Handle:http://hdl.handle.net/20.500.12110/paper_24699926_v99_n3_p_Archubi
Título revista:Physical Review A
Título revista abreviado:Phys. Rev. A
ISSN:24699926
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24699926_v99_n3_p_Archubi

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Citas:

---------- APA ----------
Archubi, C.D. & Arista, N.R. (2019) . Theoretical models to calculate stopping and ionization ratios of H2+ molecules in solid targets. Physical Review A, 99(3).
http://dx.doi.org/10.1103/PhysRevA.99.032702
---------- CHICAGO ----------
Archubi, C.D., Arista, N.R. "Theoretical models to calculate stopping and ionization ratios of H2+ molecules in solid targets" . Physical Review A 99, no. 3 (2019).
http://dx.doi.org/10.1103/PhysRevA.99.032702
---------- MLA ----------
Archubi, C.D., Arista, N.R. "Theoretical models to calculate stopping and ionization ratios of H2+ molecules in solid targets" . Physical Review A, vol. 99, no. 3, 2019.
http://dx.doi.org/10.1103/PhysRevA.99.032702
---------- VANCOUVER ----------
Archubi, C.D., Arista, N.R. Theoretical models to calculate stopping and ionization ratios of H2+ molecules in solid targets. Phys. Rev. A. 2019;99(3).
http://dx.doi.org/10.1103/PhysRevA.99.032702