Direct observation of band-gap closure for a semiconducting carbon nanotube in a large parallel magnetic field.
PHYSICAL REVIEW LETTERS 2011;
106:096802. [PMID:
21405643 DOI:
10.1103/physrevlett.106.096802]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Indexed: 05/30/2023]
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.
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