Anomalous electronic energy losses in protons passing through Gd thin films

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dc.contributor.authorValdes, Jorge E.
dc.contributor.authorLeon, Andrea M.
dc.contributor.authorArista, Nestor
dc.contributor.authorEsaulov, Vladimir A.
dc.date.accessioned2025-01-20T20:11:11Z
dc.date.available2025-01-20T20:11:11Z
dc.date.issued2023
dc.description.abstractWe report a theoretical analysis of recent data on the unexpectedly high electronic energy loss protons in a polycrystalline gadolinium target. These results led the authors of this data to conclude that the free electron model used to analyse these results fails. In this work we provide a quantitative explanation of the experimental results, using an approach based on density functional theory within the framework of the free electron gas model. We performed semi-classical trajectory simulations (SCTS) and employ the local-density-approximation model (LDA), using an inhomogeneous electron density distribution and the polycrystalline character of Gd samples. The good agreement obtained, delineates the need of considering a realistic description of a particle trajectory and the effective electron density 'seen' along it, whose description remains within a FEG model.
dc.description.funderUTFSM through DGIIE
dc.fuente.origenWOS
dc.identifier.doi10.1080/10420150.2023.2186866
dc.identifier.eissn1029-4953
dc.identifier.issn1042-0150
dc.identifier.urihttps://doi.org/10.1080/10420150.2023.2186866
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92127
dc.identifier.wosidWOS:000983063100003
dc.issue.numero1-2
dc.language.isoen
dc.pagina.final27
dc.pagina.inicio20
dc.revistaRadiation effects and defects in solids
dc.rightsacceso restringido
dc.subjectGadolinium
dc.subjectfree electron model
dc.subjectstopping of ions
dc.subjectproton
dc.subjection scattering
dc.titleAnomalous electronic energy losses in protons passing through Gd thin films
dc.typeartículo
dc.volumen178
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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