Dielectric description of wakes and stopping powers in solids
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Título: | Dielectric description of wakes and stopping powers in solids |
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Autor/es: | Abril, Isabel | García Molina, Rafael | Denton Zanello, Cristian D. | Pérez Pérez, F. Javier | Arista, Néstor R. |
Grupo/s de investigación o GITE: | Interacción de Partículas Cargadas con la Materia |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Física Aplicada |
Palabras clave: | Dielectric description | Dynamical potential induced | Swift protons | Solids | Stopping power |
Área/s de conocimiento: | Física Aplicada |
Fecha de publicación: | jul-1998 |
Editor: | American Physical Society |
Cita bibliográfica: | ABRIL, Isabel, et al. “Dielectric description of wakes and stopping powers in solids”. Physical Review A. Vol. 58, No. 1 (July 1998). ISSN 1050-2947, pp. 357-366 |
Resumen: | The dielectric description of the dynamical potential induced by swift protons in solids and the related stopping power is analyzed, using a combination of Mermin-type dielectric functions, which are fitted to available experimental data, to describe the optical properties of various materials. We apply this method to represent the energy loss functions of aluminum, silicon, amorphous carbon, and copper on a wide range of energy and momentum transfers. Using these functions we calculate the shape of the wake potential induced by swift protons; significant differences are obtained in the cases of carbon and copper, with respect to the results derived from simplified dielectric models. The energy loss functions are also applied to calculate the proton stopping power of each element, which are compared with experimental values. |
Patrocinador/es: | This work was supported in part by the Spanish Dirección General de Investigación Científica y Técnica (Project Nos. PB95-0689 and PB96-1118). C.D.D. thanks the Instituto de Cooperación Iberoamericana for a grant. N.R.A. wishes to thank the Conselleria d’Educació i Ciència de la Generalitat Valenciana for their support under the program PROPIO. |
URI: | http://hdl.handle.net/10045/25356 |
ISSN: | 1050-2947 (Print) | 1094-1622 (Online) |
DOI: | 10.1103/PhysRevA.58.357 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 1998 The American Physical Society |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1103/PhysRevA.58.357 |
Aparece en las colecciones: | INV - IPCM - Artículos de Revistas |
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1998_PhysRevA.58.357.pdf | 213,81 kB | Adobe PDF | Abrir Vista previa | |
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