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http://hdl.handle.net/2445/134282
Title: | Columnar-to-Disk Structural Transition in Nanoscale (SiO2)N Clusters |
Author: | Bromley, Stefan Thomas Flikkema, Edwin |
Keywords: | Nanoestructures Nanotecnologia Nanostructures Nanotechnology |
Issue Date: | 28-Oct-2005 |
Publisher: | American Physical Society |
Abstract: | Extensive large-scale global optimizations refined by ab initio calculations are used to propose ( SiO 2 ) N N = 14 - 27 ground states. For N < 23 clusters are columnar and show N − odd - N − even stability, energetically and electronically. At N = 23 a columnar-to-disk structural transition occurs reminiscent of that observed for Si N . These transitions differ in nature but have the same basis, linking the nanostructural behavior of an element (Si) and its oxide ( SiO 2 ). Considering the impact of devices based on the nanoscale manipulation of Si / SiO 2 the result is of potential technological importance. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.95.185505 |
It is part of: | Physical Review Letters, 2005, vol. 95, num. 18, p. 185505 |
URI: | http://hdl.handle.net/2445/134282 |
Related resource: | https://doi.org/10.1103/PhysRevLett.95.185505 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
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