Effects of axial torsion on sp carbon atomic nanowires

Details Effects of axial torsion on sp carbon atomic nanowires Effects of axial torsion on sp carbon atomic nanowires

2009-02-15

arxiv.org/abs/0902.2573v4

Phys. Rev. Lett. 102, 245502 (2009)

Physics

Condensed Matter

Materials Science

in print in Phys Rev Lett

Scientific paper

Ab-initio calculations within Density Functional Theory combined with experimental Raman spectra on cluster-beam deposited pure carbon films provide a consistent picture of sp-carbon chains stabilized by sp^3 or sp^2 terminations, the latter being sensitive to torsional strain. This unexplored effect promises many exciting applications since it allows one to modify the conductive states near the Fermi level and to switch on and off the on-chain pi-electron magnetism.

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