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      Chiral single-wall gold nanotubes

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      Author(s)
      Senger, R. T.
      Dag, S.
      Çıracı, Salim
      Date
      2004
      Source Title
      Physical Review Letters
      Print ISSN
      0031-9007
      Publisher
      American Physical Society
      Volume
      93
      Issue
      19
      Pages
      196807-1 - 196807-4
      Language
      English
      Type
      Article
      Item Usage Stats
      259
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      188
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      Abstract
      The formation of freestanding and tip-suspended chiral-wall (n,m) nanotubes, which were composed of helical atomic strands, from gold atoms was investigated using first-principles calculations, where (n,m) notation defines the structure of the tube. The tubes with 3≤n≤5 were found to be stable and exhibited electronic and transport properties investigated. The (5,3) gold tube was energetically the most favourable. It was observed from the quantum ballistic conductance, band structure and charge density analysis that the current on these wires was less chiral, and no direct correlation between the numbers of conduction channels and helical strands was found.
      Keywords
      Band structure
      Binding energy
      Chemical bonds
      Correlation methods
      Elastic moduli
      Fermi level
      Free energy
      Gold
      Green's function
      Lattice constants
      Magnetic fields
      Magnetic flux
      Nanotechnology
      Quantum theory
      Transmission electron microscopy
      Charge densities
      Nanoelectronics
      Quantum ballistic conductance
      Single-wall nanotubes (SWNT)
      Carbon nanotubes
      Permalink
      http://hdl.handle.net/11693/24190
      Published Version (Please cite this version)
      http://dx.doi.org/10.1103/PhysRevLett.93.196807
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