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AC-response of a carbon nanotube Y-junction
M. del Valle, N. Ranjan, and G. Cuniberti
Deutsche Physikalische Gesellschaft, AKF Frühjahrstagung 2003 German Physical Society, Spring Meeting 2003 (Symposium Computational Nanoscience: From Materials to Biology)
2003.03.25; Dresden, Germany
| We present a study of the transport properties of
carbon nanotube (CNT) junctions under a time dependent
driving such as a laser field. CNT junctions are of
essential importance as they might enable a step
forward in the way towards molecular computing
devices. We concentrate our analysis on symmetric
CNT-Y-junctions connected to three armchair CNTs, and
calculate the linear conductance by means of the
Floquet formalism [1] and Green functions
techniques, within a p-orbital description of the carbon network. We
present a detailed study of the orientational
dependence of the junction relative to the laser field
polarization as well as its dependence on the external
field frequency W. Our
results [2] show the important role of the
molecular structure of the Y junction on transport
calculations. [1] J.H. Shirley,
Phys. Rev. 138, B979
(1965). [2] M. del Valle, N. Ranjan and G.
Cuniberti, in preparation.
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Prof. Dr. Gianaurelio Cuniberti
secretariat:
postal address:
Institute for Materials Science
TU Dresden
01062 Dresden, Germany
visitors and courier address:
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