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dc.contributor.authorShubeita, Samir de Moraispt_BR
dc.contributor.authorGrande, Pedro Luispt_BR
dc.contributor.authorDias, Johnny Ferrazpt_BR
dc.contributor.authorGarcía-Molina, Rafaelpt_BR
dc.contributor.authorDenton, Cristian D.pt_BR
dc.contributor.authorAbril Sanches, Isabelpt_BR
dc.date.accessioned2014-10-14T02:13:07Zpt_BR
dc.date.issued2011pt_BR
dc.identifier.issn1098-0121pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/104529pt_BR
dc.description.abstractWe present experimental and theoretical results of vicinage effects due to the interaction of H+ 2 and H+ 3 molecules with thin gold foils. High-energy-resolution backscattering experiments were carried out at energies ranging from 80 up to 200 keV per nucleon for the H+ 2 molecules and up to 140 keV per nucleon for the H+ 3 molecules. The results show small enhancements (about 5% and 15% for H+ 2 and H+ 3 molecules, respectively) of the stopping ratios. The values obtained by the simulation code SEICS indicate small vicinage effects as well and are in satisfactory agreement with the experimental data. Moreover, the same simulations carried out for carbon foils yield relatively higher stopping ratios. The differences between the vicinage effects obtained for C and Au are interpreted in terms of different excitation spectra of each material. Finally, our results obtained for Au are in clear disagreement with those reported in the seminal work of Brandt, Ratkowski, and Ritchie [Phys. Rev. Lett. 33, 1325 (1974)].en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofPhysical review. B, Condensed matter and materials physics. Woodbury. Vol. 83, no. 24 (June 2011), 245423, 6 p.pt_BR
dc.rightsOpen Accessen
dc.subjectFísica da matéria condensadapt_BR
dc.subjectPerda de energia de particulaspt_BR
dc.subjectÍons de hidrogêniopt_BR
dc.subjectÍons positivospt_BR
dc.titleEnergy loss of swift H+2 and H+3 molecules in gold : vicinage effectspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000794691pt_BR
dc.type.originEstrangeiropt_BR


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