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Spiral nucleation of silicon solidified on heterogeneous surface of carbon nanocones

Appl. Phys. Lett. 95, 183101 (2009); doi:10.1063/1.3258492

Published 3 November 2009

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H. Li,1 Y. F. Li,1 K. M. Liew,2 J. X. Zhang,1 and X. F. Liu1
1Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, People's Republic of China
2Department of Building and Construction, City University of Hong Kong, Kowloon, Hong Kong
Molecular dynamics studies are carried out to examine the spiral nucleation mode of silicon solidified on the surface of carbon nanocones (CNCs). The silicon atoms are concentrated to form magic multilayered nanocones composed of coaxial and equidistant conical shells. Heterogeneous nucleation that occurred on CNCs follows a spiral nucleating mechanism. The structures of so-formed silicon cones show strict structural matching and strong structural relevance with CNCs. The uniform internal potential field around the CNCs is responsible for the formation of the coaxial conical shells. ©2009 American Institute of Physics
History: Received 6 August 2009; accepted 14 October 2009; published 3 November 2009
Permalink: http://link.aip.org/link/?APPLAB/95/183101/1
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KEYWORDS and PACS

Keywords
PACS
  • 81.30.Fb
    Solidification
  • 61.46.-w
    Structure of nanoscale materials
  • 81.16.-c
    Methods of nanofabrication and processing
  • 68.65.Ac
    Multilayers (structure and nonelectronic properties)
  • YEAR: 2009

PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
AIP is a member of CrossRef AIP

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