Navegação por Assunto "Espalhamento de íons de energia intermediaria"
Resultados 1-7 de 7
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Determinação da espessura de filmes finos e ultrafinos poliméricos pela técnica de explosão coulombiana
(2023) [Trabalho de conclusão de graduação]O presente trabalho tem por objetivo determinar a espessura de filmes finos e ultrafinos poliméricos de polimetilmetacrilato (PMMA) utilizando a técnica de Medium Energy Ion Scattering (MEIS) através da explosão coulombiana. ... -
Ground- and excited-state scattering potentials for the stopping of protons in an electron gas
(2019) [Artigo de periódico]The self-consistent electron–ion potential V(r) is calculated for H+ ions in an electron gas system as a function of the projectile energy to model the electronic stopping power for conduction-band electrons. The results ... -
Stopping and straggling of 60–250-keV backscattered protons on nanometric Pt films
(2020) [Artigo de periódico]The stopping power and straggling of backscattered protons on nanometric Pt films were measured at low to medium energies (60–250 keV) by using the medium-energy ion scattering technique. The stopping power results are in ... -
Stopping power of cluster ions in a free-electron gas from partial-wave analysis
(2018) [Artigo de periódico]A nonlinear model for the stopping power of cluster ions based on partial-wave analysis is developed through the generalization of the induced density approach (IDA) model for the interaction of homo-and heteronuclear ... -
Unraveling energy loss processes of low energyheavy ions in 2D materials
(2019) [Artigo de periódico]Structuring of 2D materials and their heterostructures with ion beams is a challenging task, because typically low ion energies are needed to avoid damage to a substrate. In addition, at the very first monolayers of a ... -
Unraveling structural and compositional information in 3D FinFET electronic devices
(2019) [Artigo de periódico]Non-planar Fin Field Effect Transistors (FinFET) are already present in modern devices. The evolution from the well-established 2D planar technology to the design of 3D nanostructures rose new fabrication processes, but a ... -
Versatilidade da técnica MEIS na caracterização de nanomateriais e dispositivos avançados
(2019) [Tese]A nanotecnologia está presente em diversos setores industriais como cosmético, automotivo, telecomunicação, saúde, alimentação, entre outros. O número de publicações e patentes associadas à nanotecnologia cresce a cada ano ...