Intriguing surface-extruded plastic flow of SiOx amorphous nanowire as athermally induced by electron beam irradiation

Zhu, Xianfang, Su, Jiangbin, Wu, Yan, Wang, Lianzhou and Wang, Zhanguo (2014) Intriguing surface-extruded plastic flow of SiOx amorphous nanowire as athermally induced by electron beam irradiation. Nanoscale, 6 3: 1499-1507. doi:10.1039/c3nr05340g


Author Zhu, Xianfang
Su, Jiangbin
Wu, Yan
Wang, Lianzhou
Wang, Zhanguo
Title Intriguing surface-extruded plastic flow of SiOx amorphous nanowire as athermally induced by electron beam irradiation
Journal name Nanoscale   Check publisher's open access policy
ISSN 2040-3364
2040-3372
Publication date 2014-02-07
Year available 2013
Sub-type Article (original research)
DOI 10.1039/c3nr05340g
Open Access Status Not Open Access
Volume 6
Issue 3
Start page 1499
End page 1507
Total pages 9
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Language eng
Abstract Nanoinstability and nanoprocessing of a SiOx amorphous nanowire at room temperature as induced by in situ electron beam irradiation in transmission electron microscopy are systematically investigated. It is demonstrated that in contrast to the crystalline nanowires where only the beam-induced ablation of atoms was observed, the amorphous nanowire herein can give rise to an arresting beam-induced surface-extruded plastic flow of massive atoms and surface migration of atoms in addition to the beam-induced ablation of atoms. Via the plastic flow and ablation, a new S-type deformed wire and the thinnest amorphous nanowire are elaborately created locally at nanoscale precision with a highly controllable manner depending on the beam current density, beam spot size, and beam position. The existing knock-on mechanism and simulation seem inadequate to explain these processes. However, it is indicated that a much higher nanocurved surface energy of nanowires and an enhanced beam-induced soft mode and instability of atomic vibration control the processes.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2014 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
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