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Interplay of Aharonov-Bohm, chirality, and aspect ratio effects in the axial conductance of a nanotube by Kolomeisky, Eugene B.; Straley, Joseph P.; Zaidi, Hussain is a scholarly article available to read on EtoBox.

What is Interplay of Aharonov-Bohm, chirality, and aspect ratio effects in the axial conductance of a nanotube about?

A magnetic flux applied along the axis of a nanotube can counteract the effect of the tube chirality and dramatically affect its conductance, leading to a way to determine the chirality of a nanotube. The effect of the applied flux is strongest in the long tube limit where the conductance is (i) either a sequence of sharp $4e^{2}/h$ height peaks located at integer (in units of the flux quantum) values of the flux (for an armchair tube) or (ii) a periodic sequence of pairs of $2e^{2}/h$ height peaks for a chiral tube, with the spacing determined by the chirality. In the short tube limit the conductance takes on the value that gives the universal conductivity of an undoped graphene sheet, with a small amplitude modulation periodic in the flux.

Author

Kolomeisky, Eugene B.; Straley, Joseph P.; Zaidi, Hussain

Published

2011

Language

EN