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dc.contributor.authorMitsuhara, Keipt_BR
dc.contributor.authorMatsuda, Taishipt_BR
dc.contributor.authorTominaga, K.pt_BR
dc.contributor.authorGrande, Pedro Luispt_BR
dc.contributor.authorSchiwietz, Gregorpt_BR
dc.contributor.authorKido, Yoshiakipt_BR
dc.date.accessioned2014-10-15T02:12:33Zpt_BR
dc.date.issued2013pt_BR
dc.identifier.issn1050-2947pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/104550pt_BR
dc.description.abstractThe energy loss of an ion passing along a major crystal axis before and/or after undergoing a large-angle collision is strongly enhanced, because its path is close to a lattice-site atom located at the crystal axis; this is the so-called skimming effect. One may find this effect in high-resolution medium-energy ion scattering (MEIS) spectra from submonolayers of single crystals. In the present study, the MEIS spectra were observed for mediumenergy He+ ions backscattered fromKI(001) and RbI(001) crystals at various scattering geometries. The observed surface peaks were decomposed into scattering components from top-, second-, and third-layer atoms considering the hitting probabilities, which were derived from Monte Carlo simulations of ion trajectories, taking account of the enhanced and correlated thermal vibrations. The results obtained here demonstrate that the energy loss of the ions which move skimming trajectories is expressed reasonably well by the impact-parameter-dependent energy loss calculated using the nonperturbative coupled-channel method.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofPhysical review. A, Atomic, molecular, and optical physics. Vol. 87, no. 4 (Apr. 2013), 042901, 8 p.pt_BR
dc.rightsOpen Accessen
dc.subjectMétodo de Monte Carlopt_BR
dc.subjectMonocamadaspt_BR
dc.subjectVibracoespt_BR
dc.subjectCompostos de potássiopt_BR
dc.subjectCompostos de rubídiopt_BR
dc.titleSkimming-trajectory effect for energy loss of medium-energy He ions passing along major crystal axes of KI(001) and RbI(001)pt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000897713pt_BR
dc.type.originEstrangeiropt_BR


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