TY - JOUR
T1 - Controlling edge states of zigzag carbon nanotubes by the Aharonov-Bohm flux
AU - Sasaki, K.
AU - Murakami, S.
AU - Saito, R.
AU - Kawazoe, Y.
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2005
Y1 - 2005
N2 - It has been known theoretically that localized states exist around the zigzag edges of a graphite ribbon and of a carbon nanotube, whose energy eigenvalues are located between conduction and valence bands. We find that in metallic, zigzag single-walled, carbon nanotubes two of the localized states become critical, and that their localization length is sensitive to the mean curvature of a tube, and it can be controlled by the Aharonov-Bohm flux. The curvature-induced mini gap closes by the relatively weak magnetic field. A conductance measurement in the presence of the Aharonov-Bohm flux can give information about the curvature effect and the critical states.
AB - It has been known theoretically that localized states exist around the zigzag edges of a graphite ribbon and of a carbon nanotube, whose energy eigenvalues are located between conduction and valence bands. We find that in metallic, zigzag single-walled, carbon nanotubes two of the localized states become critical, and that their localization length is sensitive to the mean curvature of a tube, and it can be controlled by the Aharonov-Bohm flux. The curvature-induced mini gap closes by the relatively weak magnetic field. A conductance measurement in the presence of the Aharonov-Bohm flux can give information about the curvature effect and the critical states.
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U2 - 10.1103/PhysRevB.71.195401
DO - 10.1103/PhysRevB.71.195401
M3 - Article
AN - SCOPUS:28544431589
VL - 71
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 19
M1 - 195401
ER -