Direct observation of band-gap closure for a semiconducting carbon nanotube in a large parallel magnetic field

Authors :: Jhang, S. H.
Marganska, M.
Skourski, Y.
Preusche, D.
Grifoni, M.
Wosnitza, J.
Strunk, C.
Source :: Phys. Rev. Lett.106, 096802 (2011)
Publication Year :: 2010
Abstract: We have investigated the magnetoconductance of semiconducting carbon nanotubes (CNTs) in pulsed, parallel magnetic fields up to 60 T, and report the direct observation of the predicted band-gap closure and the reopening of the gap under variation of the applied magnetic field. We also highlight the important influence of mechanical strain on the magnetoconductance of the CNTs.<br />Comment: 4 pages, 4 figures

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