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12. Accelerating GW calculations with optimal polarizability basisPaolo Umari, X Qian, Nicola Marzari, G Stenuit, Luigi Giacomazzi, Stefano Baroni, 2011, original scientific article Keywords: GW approximation, silicon nitride, silica, DFT Published in RUNG: 16.10.2018; Views: 3337; Downloads: 0 This document has many files! More... |
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14. Photoactivated processes in optical fibers: generation and conversion mechanisms of twofold coordinated Si and Ge atomsLuigi Giacomazzi, Layla Martin-Samos, A. Boukenter, Youcef Ouerdane, Sylvain Girard, Antonino Alessi, Stefano De Gironcoli, Nicolas Richard, 2017, original scientific article Keywords: ODC(II), silica, color centers, first-principles, twofold Si, GLPC Published in RUNG: 15.10.2018; Views: 3532; Downloads: 0 This document has many files! More... |
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17. EPR parameters of E' centers in v-SiO2 from first-principles calculationsLuigi Giacomazzi, Layla Martin-Samos, A. Boukenter, Youcef Ouerdane, Sylvain Girard, Nicolas Richard, 2014, original scientific article Keywords: silica, paramagnetic defects, EPR, disordered semiconductors Published in RUNG: 03.10.2018; Views: 3942; Downloads: 0 This document has many files! More... |
18. Neutron irradiation effects on the structural properties of KU1, KS-4V and I301 silica glassesM. León, Luigi Giacomazzi, Sylvain Girard, Nicolas Richard, P. Martín, Layla Martin-Samos, A. Ibarra, A. Boukenter, Youcef Ouerdane, 2014, original scientific article Keywords: silica, defects, optical fibers, hardening Published in RUNG: 03.10.2018; Views: 3804; Downloads: 0 This document has many files! More... |
19. Coupled theoretical and experimental studies for the radiation hardening of silica-based optical fibersNicolas Richard, Sylvain Girard, Luigi Giacomazzi, Layla Martin-Samos, Diego Di Francesca, C. Marcandella, Antonino Alessi, P. Paillet, S. Agnello, A. Boukenter, Youcef Ouerdane, M. Cannas, R. Boscaino, 2014, original scientific article Keywords: silica, defects, optical fibers, hardening Published in RUNG: 03.10.2018; Views: 3881; Downloads: 0 This document has many files! More... |
20. Packing patterns of silica nanoparticles on surfaces of armored polystyrene latex particlesSara Fortuna, Catheline A. L. Colard, Stefan A. F. Bon, Alessandro Troisi, 2009, original scientific article Abstract: Fascinating packing patterns of identical spherical and discotic objects on curved surfaces occur readily in nature and science. Examples include C60 fullerenes,(1, 2)13-atom cuboctahedral metal clusters,(3) and S-layer proteins on outer cell membranes.(4) Numerous situations with surface-arranged objects of variable size also exist, such as the lenses on insect eyes, biomineralized shells on coccolithophorids,(5) and solid-stabilized emulsion droplets(6) and bubbles.(7) The influence of size variations on these packing patterns, however, is studied sparsely. Here we investigate the packing of nanosized silica particles on the surface of polystyrene latex particles fabricated by Pickering miniemulsion polymerization of submicrometer-sized armored monomer droplets. We are able to rationalize the experimental morphology and the nearest-neighbor distribution with the help of Monte Carlo simulations. We show that broadening of the nanoparticle size distribution has pronounced effects on the self-assembled equilibrium packing structures, with original 12-point dislocations or grain-boundary scars gradually fading out. Keywords: packing patterns, silica, simulation, Monte Carlo, order, disorder, transition, armored particles, nanoparticles, Pickering emulsion Published in RUNG: 10.10.2016; Views: 4658; Downloads: 0 This document has many files! More... |