Matches in SemOpenAlex for { <https://semopenalex.org/work/W1978557462> ?p ?o ?g. }
- W1978557462 abstract "Classical molecular-dynamics simulations have been carried out to investigate densification mechanisms in silicon dioxide thin films deposited on an amorphous silica surface, according to a simplified ion-beam assisted deposition (IBAD) scenario. We compare the structures resulting from the deposition of near-thermal (1 eV) SiO$_{2}$ particles to those obtained with increasing fraction of 30 eV SiO$_{2}$ particles. Our results show that there is an energy interval - between 12 and 15 eV per condensing SiO$_2$ unit on average - for which the growth leads to a dense, low-stress amorphous structure, in satisfactory agreement with the results of low-energy ion-beam experiments. We also find that the crossover between low- and high-density films is associated with a tensile to compressive stress transition, and a simultaneous healing of structural defects of the {em a-}SiO$_2$ network, namely three- and four-fold rings. It is observed, finally, that densification proceeds through significant changes at intermediate length scales (4--10 AA), leaving essentially unchanged the ``building blocks'' of the network, viz. the Si(O$_{1/2}$)$_{4}$ tetrahedra. This latter result is in qualitative agreement with the mechanism proposed to explain the irreversible densification of amorphous silica recovered from high pressures ($sim$ 15--20 GPa)." @default.
- W1978557462 created "2016-06-24" @default.
- W1978557462 creator A5017214309 @default.
- W1978557462 creator A5024291564 @default.
- W1978557462 creator A5056106894 @default.
- W1978557462 creator A5075886021 @default.
- W1978557462 date "2001-08-31" @default.
- W1978557462 modified "2023-10-09" @default.
- W1978557462 title "Structural properties of silicon dioxide thin films densified by medium-energy particles" @default.
- W1978557462 cites W1966917326 @default.
- W1978557462 cites W1968787408 @default.
- W1978557462 cites W1978039434 @default.
- W1978557462 cites W1979645130 @default.
- W1978557462 cites W1983762414 @default.
- W1978557462 cites W1984796117 @default.
- W1978557462 cites W1984920237 @default.
- W1978557462 cites W1998585906 @default.
- W1978557462 cites W2000290670 @default.
- W1978557462 cites W2000327381 @default.
- W1978557462 cites W2007308053 @default.
- W1978557462 cites W2009697576 @default.
- W1978557462 cites W2010295455 @default.
- W1978557462 cites W2010594666 @default.
- W1978557462 cites W2011671880 @default.
- W1978557462 cites W2012467245 @default.
- W1978557462 cites W2017789513 @default.
- W1978557462 cites W2018572451 @default.
- W1978557462 cites W2018980295 @default.
- W1978557462 cites W2028927441 @default.
- W1978557462 cites W2031782867 @default.
- W1978557462 cites W2033459064 @default.
- W1978557462 cites W2038496227 @default.
- W1978557462 cites W2040200521 @default.
- W1978557462 cites W2040264838 @default.
- W1978557462 cites W2050875243 @default.
- W1978557462 cites W2054772942 @default.
- W1978557462 cites W2059067766 @default.
- W1978557462 cites W2065309423 @default.
- W1978557462 cites W2068062780 @default.
- W1978557462 cites W2069764308 @default.
- W1978557462 cites W2072494311 @default.
- W1978557462 cites W2084053638 @default.
- W1978557462 cites W2084761507 @default.
- W1978557462 cites W2084782952 @default.
- W1978557462 cites W2085269001 @default.
- W1978557462 cites W2085821432 @default.
- W1978557462 cites W2087623546 @default.
- W1978557462 cites W2094508030 @default.
- W1978557462 cites W2095350306 @default.
- W1978557462 cites W2144839282 @default.
- W1978557462 cites W2156639697 @default.
- W1978557462 cites W3105922535 @default.
- W1978557462 cites W4213225564 @default.
- W1978557462 cites W1984368055 @default.
- W1978557462 doi "https://doi.org/10.1103/physrevb.64.115429" @default.
- W1978557462 hasPublicationYear "2001" @default.
- W1978557462 type Work @default.
- W1978557462 sameAs 1978557462 @default.
- W1978557462 citedByCount "37" @default.
- W1978557462 countsByYear W19785574622012 @default.
- W1978557462 countsByYear W19785574622013 @default.
- W1978557462 countsByYear W19785574622014 @default.
- W1978557462 countsByYear W19785574622015 @default.
- W1978557462 countsByYear W19785574622016 @default.
- W1978557462 countsByYear W19785574622017 @default.
- W1978557462 countsByYear W19785574622018 @default.
- W1978557462 countsByYear W19785574622019 @default.
- W1978557462 countsByYear W19785574622020 @default.
- W1978557462 countsByYear W19785574622021 @default.
- W1978557462 countsByYear W19785574622022 @default.
- W1978557462 countsByYear W19785574622023 @default.
- W1978557462 crossrefType "journal-article" @default.
- W1978557462 hasAuthorship W1978557462A5017214309 @default.
- W1978557462 hasAuthorship W1978557462A5024291564 @default.
- W1978557462 hasAuthorship W1978557462A5056106894 @default.
- W1978557462 hasAuthorship W1978557462A5075886021 @default.
- W1978557462 hasBestOaLocation W19785574622 @default.
- W1978557462 hasConcept C112950240 @default.
- W1978557462 hasConcept C121332964 @default.
- W1978557462 hasConcept C138885662 @default.
- W1978557462 hasConcept C145148216 @default.
- W1978557462 hasConcept C151730666 @default.
- W1978557462 hasConcept C159467904 @default.
- W1978557462 hasConcept C159985019 @default.
- W1978557462 hasConcept C171250308 @default.
- W1978557462 hasConcept C185592680 @default.
- W1978557462 hasConcept C19067145 @default.
- W1978557462 hasConcept C191897082 @default.
- W1978557462 hasConcept C192562407 @default.
- W1978557462 hasConcept C21036866 @default.
- W1978557462 hasConcept C2779089622 @default.
- W1978557462 hasConcept C2816523 @default.
- W1978557462 hasConcept C41895202 @default.
- W1978557462 hasConcept C50774322 @default.
- W1978557462 hasConcept C544956773 @default.
- W1978557462 hasConcept C56052488 @default.
- W1978557462 hasConcept C62520636 @default.
- W1978557462 hasConcept C64297162 @default.
- W1978557462 hasConcept C8010536 @default.
- W1978557462 hasConcept C86803240 @default.