We analyze the electronic properties of a two-dimensional electron gas rolled up into a nanotube by both numerical and analytical techniques. The nature and the energy dispersion of the electronic quantum states strongly depend on the geometric parameters of the nanotube: the typical radius of curvature and the number of windings. The effect of the curvature results in the appearance of atomic-like bound states localized near the points of maximum curvature. For a two-dimensional sheet rolled up into an Archimedean spiral, we find that the number of bound states is equal to the number of windings of the spiral. © 2010 The American Physical Society.

Effect of curvature on the electronic structure and bound-state formation in rolled-up nanotubes

Ortix, Carmine;
2010-01-01

Abstract

We analyze the electronic properties of a two-dimensional electron gas rolled up into a nanotube by both numerical and analytical techniques. The nature and the energy dispersion of the electronic quantum states strongly depend on the geometric parameters of the nanotube: the typical radius of curvature and the number of windings. The effect of the curvature results in the appearance of atomic-like bound states localized near the points of maximum curvature. For a two-dimensional sheet rolled up into an Archimedean spiral, we find that the number of bound states is equal to the number of windings of the spiral. © 2010 The American Physical Society.
2010
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4706735
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