On the energy-loss straggling of protons in elemental solids: The importance of electron bunching

Autor: Pedro Luis Grande, Felipe Ferreira Selau, Maarten Vos, R. C. Fadanelli, Henrique Trombini

Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 497:70-77

In this work we investigate the energy-loss straggling of low and medium energy protons on available simple materials (C, Al, Si, Ni, Cu, Zn, Ge, Se, Pd, Ag, Sb, Pt, Au, Pb) and demonstrate that the well-known Yang-O’Connor-Wang empirical formula f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8bccd497c4fea266fe52c0532353991b
https://doi.org/10.1016/j.nimb.2021.03.006

Profiling As plasma doped Si/SiO2 with molecular ions

Autor: I. Alencar, Pedro Luis Grande, Henrique Trombini, R. C. Fadanelli, Jonathan Gerald England, Maarten Vos, G.G. Marmitt

Publikováno v: Thin Solid Films, 692:137536. Elsevier Science

Arsenic profiles in plasma doped silicon wafers were traced by scattering of H+ and H-2(+) ions at medium energies. Two wafers were doped with the same bias, gas pressure, total implanted dose and AsH3 concentration. After implantation, the wafers we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0d0ff00cc1769adf1ceb001f959aa5f
https://hdl.handle.net/11370/98bdfdff-a49b-4c6b-a49b-4f1a866d3539

The influence of the mean charge state on the Coulomb heating of fast diclusters through the Si〈1 1 1〉 direction

Autor: Moni Behar, Chiara D. Nascimento, R. C. Fadanelli

Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 372:86-90

In the present work, we report a theoretical and experimental study of the Coulomb heating of H 2 + and C 2 + in Si〈1 1 1〉 channel, covering an energy range from 200 keV/ion to 2200 keV/ion. The experimental values for Coulomb heating were obtain

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::32a657c4008997bce1b21a26ff5a0283
https://doi.org/10.1016/j.nimb.2016.02.014

Energy Loss Function of Solids Assessed by Ion Beam Energy-Loss Measurements: Practical Application to Ta2O5

Autor: Rafael Garcia-Molina, Chiara D. Nascimento, R. C. Fadanelli, Moni Behar, Luiz Carlos Camargo Miranda Nagamine, Néstor R. Arista, Maarten Vos, Isabel Abril

Publikováno v: RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)

We present a study where the energy loss function of Ta2O5, initially derived in the optical limit for a limited region of excitation energies from reflection electron energy loss spectroscopy (REELS) measurements, was improved and extended to the wh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f40bf5ab1a7bde1dfb4a9880371f86a
https://doi.org/10.1021/acs.jpcc.5b04292

Ground- and excited-state scattering potentials for the stopping of protons in an electron gas

Autor: Gregor Schiwietz, Natalia E. Koval, Néstor R. Arista, Pedro Luis Grande, Andrei G. Borisov, R. C. Fadanelli, R. Díez Muiño, F. Matias

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Journal of Physics B: Atomic, Molecular and Optical Physics
Journal of Physics B: Atomic, Molecular and Optical Physics, IOP Publishing, 2017, 50 (18), pp.185201. ⟨10.1088/1361-6455/aa843d⟩

The self-consistent electron-ion potential V(r) is calculated for H ions in an electron gas system as a function of the projectile energy to model the electronic stopping power for conduction-band electrons. The results show different self-consistent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f4e526d1bd1082fd996f40fd82b23c5
http://hdl.handle.net/10261/176727