Buscar
Mostrando ítems 1-10 de 802
Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons
(Elsevier Science, 2014-04)
We present results of secondary electron emission (SEE) induced by UV photons and low energy He ions interacting with a pristine and ion damaged surface of highly-oriented pyrolytic graphite (HOPG). A critical examination ...
The effect of the projectile intra-site Coulomb repulsion in the surface scattering of many-electron ions.
(Elsevier Science, 2003-11)
In this work a theoretical study of the collision of many-electron ions with a surface is performed. The case of largeangle collisions with respect to the surface and projectiles with an open shell is treated. Two important ...
Identification of mechanisms of ion induced electron emission by factor analysis
(Elsevier Science, 2005-04)
Introducing the use of the Factor Analysis method to analyze electron emission spectra we identify different mechanisms for electron emission from clean Al surfaces under bombardment by Ar+ and Li+ ions. The analysis of ...
Interaction of divalent copper with two diaminealkyl hexagonal mesoporous silicas evaluated by adsorption and thermochemical data
(Elsevier Science BvAmsterdamHolanda, 2005)
Computational Simulation of Charged Nanoparticles Diffusion in Vascular Tissue
(Institute of Electrical and Electronics EngineersPE, 2022-02-11)
Apparition of abnormal vasculature is common at the first phases of tumor growth. It is known as angiogenesis having the whole process various phases. This is also seen as a random migration of cells that require the flux ...
Unified description of interactions and energy loss of particles in dense matter and plasmas
(American Physical Society, 2020-11)
In this work, we propose a unified model to evaluate processes of electronic interactions of charged particles with hot and dense matter, including energy losses, mean free paths, and thermalization ranges of protons or ...
Neutralization of Li+ ions scattered by the Cu (100) and (111) surfaces: A localized picture of the atom-surface interaction
(Elsevier, 2008-12)
Large and face dependent neutral fractions have been found recently in the scattering of Li+ by Cu(1 0 0) and Cu(1 1 1) surfaces. These results for high work function surfaces are unexpected within the ‘traditional’ picture ...
Time - Energy Uncertainty and Electronic Correlation in H+ - Graphite Collisions
(American Chemical Society, 2015-01)
The formation of negative ions in the scattering of protons by a highly oriented pyrolytic graphite (HOPG) surface is theoretically and experimentally analyzed for a large scattering angle and compared with previous results ...
Disorder in H+-irradiated HOPG: Effect of impinging energy and dose on Raman D-band splitting and surface topography
(Beilstein-Institut, 2018-10-19)
Disorder was induced in pristine highly oriented pyrolytic graphite (HOPG) by irradiation with H+ ions with energies of 0.4 MeV and 1 MeV, and doses of 1014 ions/cm2 and 1016 ions/cm2. Raman spectroscopy was used as the ...