Bi nanowires modified by 400 keV and 1 MeV Au ions
dc.contributor.author | Guerra, D.B. | pt_BR |
dc.contributor.author | Müller, Sven | pt_BR |
dc.contributor.author | Oliveira, Elisa Magno Nunes de | pt_BR |
dc.contributor.author | Fichtner, Paulo Fernando Papaleo | pt_BR |
dc.contributor.author | Papaleo, Ricardo Meurer | pt_BR |
dc.date.accessioned | 2022-02-16T04:30:20Z | pt_BR |
dc.date.issued | 2018 | pt_BR |
dc.identifier.issn | 2158-3226 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/235171 | pt_BR |
dc.description.abstract | We report on the modification of the structure and morphology of Bi nanowires of two different diameters (80 or 130 nm) exposed to beams of 400 keV and 1 MeV Au+ until complete wire degradation. For fluences up to ∼1 ion/nm2 , the main effect was a slight roughening of the originally smooth surface and the appearance of a damaged zone at the wire edges. After an exposure to ∼2 ions/nm2 , shallow (∼5-7 nm deep) but wide (up to 120nm) depressions are seen, giving the wires a “wavy” morphology. At the largest fluence tested (10 ions/nm2 ), the thickest nanowires present an amorphized structure containing an embedded dispersion of small spherical metallic crystallites, while the thinner wires collapse into large (∼50nm) nanoparticles composed of a crystalline core surrounded by a disordered oxidized shell. The observed morphologic modifications are discussed considering sputtering and radiation induced surface diffusion effects. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | AIP Advances. Melville, NY. Vol. 8, no. 12 (2018), Art. 125103, 12 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Nanofios | pt_BR |
dc.subject | Bismuto | pt_BR |
dc.subject | Irradiação | pt_BR |
dc.title | Bi nanowires modified by 400 keV and 1 MeV Au ions | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001136690 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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