Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Ion-surface interactions"”.
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An experimental study of molecular ion-surface interactions at organic layers.
An experimental study of molecular ion-surface interactions at organic layers.
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Investigating the dynamics of ion-surface interactions using electron-spin-polarized positively charged helium ions
… specifically using electron-spin-polarized 4He+ ions coupled with energy-resolved measurements of the polarization of ejected electrons, are providing significant insight into surface electronic states and the dynamics of the neutralization of charged particles at clean and adsorbate-covered …
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Role of low-energy ion/surface interactions in controlling microstructure and texture evolution during film growth
… effects on microstructure and microchemistry of ion irradiation during AlCu film growth on a-SiO$\sb2$ by two directional sputtering techniques--collimated magnetron sputter deposition (CMSD) and ionized magnetron sputter deposition (IMSD)--were investigated. Both sets of films have dense …
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Mechanisms of Gallium-Arsenide Crystal Growth and Doping by Sputter Deposition: The Role of Ion-Surface Interactions
… GaAs substrates using a modified sputter deposition technique. Structural, chemical, and electrical analysis of the as-deposited films indicated that they were high quality, stoichiometric single crystals. Ion bombardment played an important and sometimes dominant role in determining GaAs film …
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F-TRIDYN: A Monte-Carlo, BCA code for modeling ion-surface interactions with rough materials and coupling plasma and material codes
Fractal-TRIDYN (F-TRIDYN) is a modified version of the widely used Monte Carlo, Binary Collision Approximation code TRIDYN that has been upgraded to include an explicit model of surface roughness and additional output modes for coupling to plasma edge and material codes. Surface roughness plays an …
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Developing a spin polarized helium ion source for surface electronic structure studies
… spin polarized He$\sp+$ source for application in studies of electron spin correlations in ion neutralization at surfaces is described. The source is based on an optically pumped helium discharge. An rf discharge is used to produce metastable helium atoms in a clean pyrex glass cell. A 300 …
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Fundamental studies of the PVD technique.
… available and competitive physical vapour deposition techniques has been made. Titanium nitride (the most widely used hard and decorative coating) has been deposited by both steered arc and the new Arc Bond Sputter (ABS) magnetron technique under a range of deposition conditions. The coatings have …
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Large-scale molecular dynamics investigations of ion-induced compositional dynamics leading to nanopattern formation at semiconductor surfaces
Ion beam nanopatterning has been demonstrated to be a versatile method for obtaining a wide variety of surface features on a broad range of materials, with structures such as ripples, quantum dots, terraces, and ordered holes being obtained for various experimental conditions. However, theoretical …
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Nanoscale insight into tribomechanical and hydrothermal process at calcite surface
Fault slip and earthquake nucleation are controlled by interfacial processes that operate at the nanoscale, where chemical, mechanical, and thermal effects converge to regulate frictional behavior. Among the minerals that compose the lithosphere, calcite is particularly significant due to its …
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Ion specific effects on charged interfaces
… affected by the type and the concentration of electrolytes. This has implications both in living and in inorganic systems. The discovery of the ‘ion specific effects’ dates back to Hofmeister (1888), who observed the specific effect of salts in promoting egg white proteins precipitation. …