Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Rafael Gustavo Torres Leal"'
Autor:
Marcos Rodrigo da Silva, Rafael Gustavo Torres Leal, Pedro Luis Grande, Ricardo Meurer Papaléo, I. Alencar
Publikováno v:
Atoms, Vol 9, Iss 17, p 17 (2021)
Atoms
Volume 9
Issue 1
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Atoms
Volume 9
Issue 1
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
The influence of the charge state q on surface modifications induced by the impact of individual fast, heavy ions on muscovite mica was investigated. Beams of 593 MeV 197Auq+ with well-defined initial charge states over a relatively broad range of va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03b174f4b1aae7e2d820bfc7df54dea3
https://www.mdpi.com/2218-2004/9/1/17
https://www.mdpi.com/2218-2004/9/1/17
Autor:
Jesum Alves Fernandes, Pedro Migowski, Daniel L. Baptista, Rafael Gustavo Torres Leal, Thomas Grehl, Luciane Calabria, Fabiano Bernardi, Jairton Dupont
Publikováno v:
Nanoscale. 9(47)
Surface-clean Au nanoparticles (NPs) confined in films of ionic liquids (ILs) can be easily fabricated by sputtering deposition. A silicon wafer coated with films of both hydrophobic (bis((trifluoromethyl)sulfonyl)amide, NTf2-) and hydrophilic (tetra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bb591fc6191fc452d76b5643a63e8b0
https://pubmed.ncbi.nlm.nih.gov/29168524
https://pubmed.ncbi.nlm.nih.gov/29168524
Autor:
M.R. da Silva, C.T. Souza, James A. Forrest, Ricardo Meurer Papaléo, Rafael Gustavo Torres Leal, Zahra Fakhraai
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 268:3080-3083
In the present work, the relaxation behavior of nanometer-sized deformations produced by single ion impacts on the surface of monodisperse (Mw = 60,000 u) polycarbonate thin films was investigated at temperatures close to and below the glass transiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88ad0e5c1cdac94fccc3125910586d71
https://doi.org/10.1016/j.nimb.2010.05.048
https://doi.org/10.1016/j.nimb.2010.05.048
Autor:
Willyan Hasenkamp, Ricardo Meurer Papaléo, Rafael Gustavo Torres Leal, Luiz Gustavo de Moura da Silva Barbosa
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 242:190-193
We report on measurements of relaxation times of craters and rims induced by 20 MeV Au ions bombarding PMMA targets at temperatures near the glass transition. PMMA thin films were bombarded at grazing angles and at low fluences (∼10 9 cm −2 ). Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36a2a0469bebc6276d47b7b0d64a5a0b
https://doi.org/10.1016/j.nimb.2005.08.025
https://doi.org/10.1016/j.nimb.2005.08.025
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 206:7-12
We report on a systematic scanning force microscope study of crater formation induced by swift heavy ions as a function of angle of incidence. PMMA films were bombarded with 197Au (20 MeV), 209Bi (2320 MeV) and 238U (2640 MeV) ions at angles θ varyi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a374a2c5a05910d58d09bd98009cfa2a
https://doi.org/10.1016/s0168-583x(03)00683-9
https://doi.org/10.1016/s0168-583x(03)00683-9
Autor:
Heberton Wender, Rafael Gustavo Torres Leal, Sérgio R. Teixeira, Martin H. G. Prechtl, Luciane F. de Oliveira, Pedro Migowski, Giovanna Machado, Adriano F. Feil, Jairton Dupont
Sputtering deposition of gold onto the 1-(butyronitrile)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (BCN)MI·N(Tf)(2) ionic liquid (IL) has generated colloidal and stable gold nanospheres (AuNS) and gold nanodisks (AuND) in a bimodal size
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72c04ec5829aefcba4b10b722994c8a8
Autor:
Rafael Gustavo Torres Leal, Gregor Schiwietz, M. Roth, Pedro Luis Grande, Marcos Rodrigo da Silva, Ricardo Meurer Papaléo, Beate Schattat
We report on craters formed by individual $3\text{ }\text{ }\mathrm{MeV}/u$ ${\mathrm{Au}}^{{q}_{\mathrm{ini}}+}$ ions of selected incident charge states ${q}_{\mathrm{ini}}$ penetrating thin layers of poly(methyl methacrylate). Holes and raised regi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06eddc8bf463aaa34a403050d41d54bd
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=42877
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=42877
Autor:
Ricardo Meurer Papaléo, Luiz Gustavo de Moura da Silva Barbosa, Willian Hasenkamp Carreira, Ivo Bello, Agostinho Antônio Bulla, Rafael Gustavo Torres Leal
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
We report on measurements of relaxation times of nanometer-sized deformations resulting from the impact of individual energetic ions on poly(methyl methacrylate) surfaces at temperatures close to and below the glass transition T{sub g}. The temporal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab60478e0ccd1c8431679bf0e5483b95
https://doi.org/10.1103/physrevb.74.094203
https://doi.org/10.1103/physrevb.74.094203