Chiral single-wall gold nanotubes

Date
2004
Advisor
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Source Title
Physical Review Letters
Print ISSN
0031-9007
Electronic ISSN
Publisher
American Physical Society
Volume
93
Issue
19
Pages
196807-1 - 196807-4
Language
English
Type
Article
Journal Title
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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.

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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
Citation
Published Version (Please cite this version)