Metal nanoring and tube formation on carbon nanotubes

Details Metal nanoring and tube formation on carbon nanotubes Metal nanoring and tube formation on carbon nanotubes

2002-05-14

arxiv.org/abs/cond-mat/0205292v1

Phys. Rev. B 66, 045409 (2002)

Physics

Condensed Matter

Materials Science

Submitted to Physical Review B

Scientific paper

10.1103/PhysRevB.66.045409

The structural and electronic properties of aluminum covered single wall carbon nanotubes (SWNT) are studied from first-principles for a large number of coverage. Aluminum-aluminum interaction that is stronger than aluminum-tube interaction, prevents uniform metal coverage, and hence gives rise to the clustering. However, a stable aluminum ring and aluminum nanotube with well defined patterns can also form around the semiconducting SWNT and lead to metallization. The persistent current in the Al nanoring is discussed to show that a high magnetic field can be induced at the center of SWNT.

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