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Bocan, G.A.; Miraglia, J.E. "Plasmon decay mechanisms in proton-solid collisions" (2005) Physical Review A - Atomic, Molecular, and Optical Physics. 72(4)
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Abstract:

A projectile traveling inside a metal can excite bulk plasmons (collective oscillations of the electron gas) that eventually decay. The two main decay mechanisms are the excitation of a nearly free electron (NFe), also referred to as a Bloch electron, and the excitation of a pair of interacting free electrons (2e). In recent publications we developed a model to study these mechanisms for proton impact on aluminum. In this paper, we apply that model to other simple metals. Interesting results are obtained for magnesium, sodium, and potassium. The comparison of the NFe energy and angular spectra sheds light on the role the crystal structure plays. Results for the total probability and excitation power can also be understood in terms of the elements' different characteristics. Some comments are made regarding the relative importance of the two mechanisms for each element and the role that parameters like the electron density, the crystal structure, and the plasmon linewidth might play in this. Also, an approximate scaling rule is found for the plasmon creation probability as well as for the 2e contribution to the plasmon decay probability. © 2005 The American Physical Society.

Registro:

Documento: Artículo
Título:Plasmon decay mechanisms in proton-solid collisions
Autor:Bocan, G.A.; Miraglia, J.E.
Filiación:Instituto de Astronomía y Física del Espacio, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Casillo de Correo 67, Sucursal 28, 1428 Buenos Aires, Argentina
Palabras clave:Interacting free electrons; Proton-solid collisions; Aluminum; Carrier concentration; Crystal structure; Electrons; Probability; Protons
Año:2005
Volumen:72
Número:4
DOI: http://dx.doi.org/10.1103/PhysRevA.72.042903
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_v72_n4_p_Bocan

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Citas:

---------- APA ----------
Bocan, G.A. & Miraglia, J.E. (2005) . Plasmon decay mechanisms in proton-solid collisions. Physical Review A - Atomic, Molecular, and Optical Physics, 72(4).
http://dx.doi.org/10.1103/PhysRevA.72.042903
---------- CHICAGO ----------
Bocan, G.A., Miraglia, J.E. "Plasmon decay mechanisms in proton-solid collisions" . Physical Review A - Atomic, Molecular, and Optical Physics 72, no. 4 (2005).
http://dx.doi.org/10.1103/PhysRevA.72.042903
---------- MLA ----------
Bocan, G.A., Miraglia, J.E. "Plasmon decay mechanisms in proton-solid collisions" . Physical Review A - Atomic, Molecular, and Optical Physics, vol. 72, no. 4, 2005.
http://dx.doi.org/10.1103/PhysRevA.72.042903
---------- VANCOUVER ----------
Bocan, G.A., Miraglia, J.E. Plasmon decay mechanisms in proton-solid collisions. Phys Rev A. 2005;72(4).
http://dx.doi.org/10.1103/PhysRevA.72.042903