Electron transport in double-walled carbon nanotubes |
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| Authors: | T S Li C H Lee M F Lin |
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| Institution: | (1) Department of Electrical Engineering, Kun Shan University, Tainan, Taiwan, Republic of China;(2) Department of Physics, National Cheng Kung University, Tainan, Taiwan, Republic of China |
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| Abstract: | The transport properties of finite length double-walled carbon nanotubes subject to the influences of
a transverse electric field and a magnetic field with varying polar angles
are investigated theoretically. The electrical conductance, thermal conductance and Peltier coefficient
dependences on the external fields and symmetric configuration are studied in linear response regime.
Prominent peak structures of the electrical conductance are predicted when varying the electric field strength.
The features of the
conductance peaks are found to be strongly dependent on the external fields and
the intertube interactions.
The heights of the electrical and thermal conductance peaks display the quantized behavior,
while those of the Peltier coefficient do not. The conductance peaks are found to be broadened
by the finite temperature. |
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| Keywords: | 61 46 -w Nanoscale materials 73 22 -f Electronic structure of nanoscale materials: clusters nanoparticles nanotubes and nanocrystals 85 35 Kt Nanotube devices |
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