Molecular structure effects in the energy loss of swift boron molecular ions in solids

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Title: Molecular structure effects in the energy loss of swift boron molecular ions in solids
Authors: García Molina, Rafael | Heredia-Avalos, Santiago | Abril, Isabel
Research Group/s: Interacción de Partículas Cargadas con la Materia
Center, Department or Service: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Departamento de Física Aplicada
Keywords: Energy loss | Stopping power | Swift boron | Molecular ions | Solids
Knowledge Area: Física Aplicada
Issue Date: 26-Jun-2000
Publisher: IOP Publishing
Citation: GARCIA-MOLINA, Rafael; HEREDIA-AVALOS, Santiago; ABRIL, Isabel. “Molecular structure effects in the energy loss of swift boron molecular ions in solids”. Journal of Physics: Condensed Matter. Vol. 12, No. 25 (2000). ISSN 0953-8984, pp. 5519-5526
Abstract: We analyse the effects on the stopping power due to the geometrical structure of swift Bn+ (n = 2-6) ions incident on amorphous carbon targets. We use the dielectric formalism to describe both the interaction of the projectile with the stopping medium and the vicinage effects on the atomic ions resulting from the dissociation of each Bn+ ion. The variation of the energy loss with the temporal evolution of the relative positions of the atomic ions, due to Coulomb explosion, has also been taken into account. The calculated stopping power ratio for each Bn+ ion reproduces fairly well the main trends, as a function of the dwell time, observed in the available experimental data. The differences among the stopping power ratios of the Bn+ ions disappear as the number of atomic ions, n, increases.
Sponsor: This work was supported by the Spanish Dirección General de Enseñanza Superior (project PB96-1118) and by the Generalitat Valenciana (project GV99-54-1-01). SHA thanks the Spanish Ministerio de Educación y Cultura for a research grant.
URI: http://hdl.handle.net/10045/25363
ISSN: 0953-8984 (Print) | 1361-648X (Online)
DOI: 10.1088/0953-8984/12/25/315
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2000 IOP Publishing
Peer Review: si
Publisher version: http://dx.doi.org/10.1088/0953-8984/12/25/315
Appears in Collections:INV - IPCM - Artículos de Revistas

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