Giant Barkas effect observed for light ions channeling in Si
dc.contributor.author | Azevedo, Gustavo de Medeiros | pt_BR |
dc.contributor.author | Grande, Pedro Luis | pt_BR |
dc.contributor.author | Behar, Moni | pt_BR |
dc.contributor.author | Dias, Johnny Ferraz | pt_BR |
dc.contributor.author | Schiwietz, Gregor | pt_BR |
dc.date.accessioned | 2014-08-12T02:10:22Z | pt_BR |
dc.date.issued | 2001 | pt_BR |
dc.identifier.issn | 0031-9007 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/100093 | pt_BR |
dc.description.abstract | Measurements of the electronic energy loss are presented for ⁴He and ⁷Li ions channeling along the Si main axial directions at intermediate to high projectile energies. The Barkas effect, an energy-loss enhancement proportional to the third power of the projectile charge at high energies, is clearly separated from other processes. It reaches about 50% for Li ions channeling along the Si <110> direction. The observed Barkas contribution from the valence-electron gas is in fair agreement with the Lindhard model. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review letters. Melville. Vol. 86, no. 8 (Feb. 2001), 1482-1485 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Física | pt_BR |
dc.title | Giant Barkas effect observed for light ions channeling in Si | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000284176 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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