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

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...

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Bibliographic Details
Published in:Physical review letters 2011-03, Vol.106 (9), p.096802-096802, Article 096802
Main Authors: Jhang, S H, Margańska, M, Skourski, Y, Preusche, D, Grifoni, M, Wosnitza, J, Strunk, C
Format: Article
Language:English
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Summary: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.106.096802