One-dimensional semirelativity for electrons in carbon nanotubes

Abstract

It is shown that the band structure of single-wall semiconducting carbon nanotubes (CNT) is analogous to relativistic description of electrons in vacuum, with the maximum velocity $u$= $10^8$cm/s replacing the light velocity. One-dimensional semirelativistic kinematics and dynamics of electrons in CNT is formulated. Two-band k.p Hamiltonian is employed to demonstrate that electrons in CNT experience a Zitterbewegung (trembling motion) in absence of external fields. This Zitterbewegung should be observable much more easily in CNT than its analogue for free relativistic electrons in vacuum.

4 pages no figures

References in corpus (3)

• Zitterbewegung, chirality, and minimal conductivity in graphene
• Zitterbewegung of electronic wave packets in semiconductor nanostructures
• Zitterbewegung and its effects on electrons in semiconductors

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