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Direct Observation of Band-Gap Closure for a Semiconducting Carbon Nanotube in a Large Parallel Magnetic Field

Jhang , Sung Ho and Marganska, Magdalena and Skourski, Y. and Preusche, Dominik and Grifoni, Milena and Wosnitza, Joachim and Strunk, Christoph (2011) Direct Observation of Band-Gap Closure for a Semiconducting Carbon Nanotube in a Large Parallel Magnetic Field. Phys. Rev. Lett. 106 (9), 096802.

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Other URL: http://prl.aps.org/abstract/PRL/v106/i9/e096802

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.

Item Type:

Article

Institutions:

Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Milena Grifoni
Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk

Projects:

GRK 1570, Elektronische Eigenschaften von Nanostrukturen auf Kohlenstoff-Basis, SFB 689: Spinphänomene in reduzierten Dimensionen

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