A molecular dynamics simulation of multi-wall platinum nanowires

  • Q. H. Cheng*
  • , H. P. Lee
  • , C. Lu
  • , S. J. Koh
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Structural formation of platinum (Pt) nanowire (NW) is investigated using the classical molecular dynamics (MD) simulation method. A type of multi-shell Pt NWs is obtained from the simulations. These NWs consist of multi walls formed by rolling fee (111) triangular network sheets. Experimental evidence of existence of such multi-wall Pt NWs has been reported (Kondo and Takayanagi, Science 289, 606, 2000). The simulations begin from initially random atom configurations. The initial configuration is minimized by the steepest descent method, and assigned a temperature of 601 K with a Maxwell-Boltzmann random distribution. Then simulated annealing is applied such that the temperature of the system is reduced gradually to 1 K and a stable NW structure is obtained. Structural characteristics of these Pt NWs, i.e. the lattice parameters, are further examined and presented in this paper.

Original languageEnglish
Title of host publication2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings
EditorsM. Laudon, B. Romanowicz
Pages542-545
Number of pages4
StatePublished - 2005
Externally publishedYes
Event2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 - Anaheim, CA, United States
Duration: 8 May 200512 May 2005

Publication series

Name2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings

Conference

Conference2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005
Country/TerritoryUnited States
CityAnaheim, CA
Period8/05/0512/05/05

Keywords

  • Berendsen thermostat
  • Molecular dynamics simulation
  • Nanowire
  • Periodic boundary condition
  • Steepest descent method
  • Velocity verlet algorithm

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