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Abstract:

The striking observation of interference structures produced by grazing impact of fast atoms on crystal surfaces reported a few years ago [1,2] has given rise to the development of a powerful surface analysis technique. This article gives a brief account of the main features of the process, using the Surface Eikonal (SE) approximation as a theoretical tool to analyze the different mechanisms responsible for the quantum interference. The SE approach is a semiclassical method based on the use of the eikonal wave function, which takes into account the coherent superposition of transition amplitudes for different axially channeled trajectories. It has proved to provide a quite good description of experimental diffraction patterns for different collision systems. © Published under licence by IOP Publishing Ltd.

Registro:

Documento: Conferencia
Título:Quantum interference of fast atoms scattered off crystal surfaces
Autor:Gravielle, M.S.
Filiación:Instituto de Astronomía y Física Del Espacio (IAFE, CONICET-UBA), Casilla de correo 67, sucursal 28, Buenos Aires, C1428EGA, Argentina
Palabras clave:Charged particles; Quantum interference devices; Quantum interference phenomena; Surface analysis; Wave functions; Coherent superpositions; Collision systems; Different mechanisms; Interference structures; Quantum interference; Semiclassical methods; Surface analysis techniques; Transition amplitudes; Crystal atomic structure
Año:2015
Volumen:583
DOI: http://dx.doi.org/10.1088/1742-6596/583/1/012027
Título revista:Journal of Physics: Conference Series
Título revista abreviado:J. Phys. Conf. Ser.
ISSN:17426588
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v583_n_p_Gravielle

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Citas:

---------- APA ----------
(2015) . Quantum interference of fast atoms scattered off crystal surfaces. Journal of Physics: Conference Series, 583.
http://dx.doi.org/10.1088/1742-6596/583/1/012027
---------- CHICAGO ----------
Gravielle, M.S. "Quantum interference of fast atoms scattered off crystal surfaces" . Journal of Physics: Conference Series 583 (2015).
http://dx.doi.org/10.1088/1742-6596/583/1/012027
---------- MLA ----------
Gravielle, M.S. "Quantum interference of fast atoms scattered off crystal surfaces" . Journal of Physics: Conference Series, vol. 583, 2015.
http://dx.doi.org/10.1088/1742-6596/583/1/012027
---------- VANCOUVER ----------
Gravielle, M.S. Quantum interference of fast atoms scattered off crystal surfaces. J. Phys. Conf. Ser. 2015;583.
http://dx.doi.org/10.1088/1742-6596/583/1/012027