TY - JOUR
T1 - Nonlinear coherent transport through doped nanotube junctions
AU - Farajian, Amir A.
AU - Esfarjani, Keivan
AU - Kawazoe, Yoshiyuki
PY - 1999
Y1 - 1999
N2 - The electronic and phase-coherent transport properties of doped carbon nanotube junctions are studied. It is shown that there are regions of negative differential resistance in the I-V characteristic of small radius metallic tubes, which are not seen for semiconducting tubes. Their origin, as discussed, is different from that of traditional Esaki diodes and resonant tunneling structures. Semiconducting tube characteristics, however, show a region of zero current for nonzero voltages which is asymmetric with respect to the applied bias if there is different doping on each side of the junction.
AB - The electronic and phase-coherent transport properties of doped carbon nanotube junctions are studied. It is shown that there are regions of negative differential resistance in the I-V characteristic of small radius metallic tubes, which are not seen for semiconducting tubes. Their origin, as discussed, is different from that of traditional Esaki diodes and resonant tunneling structures. Semiconducting tube characteristics, however, show a region of zero current for nonzero voltages which is asymmetric with respect to the applied bias if there is different doping on each side of the junction.
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U2 - 10.1103/PhysRevLett.82.5084
DO - 10.1103/PhysRevLett.82.5084
M3 - Article
AN - SCOPUS:0032615135
SN - 0031-9007
VL - 82
SP - 5084
EP - 5087
JO - Physical Review Letters
JF - Physical Review Letters
IS - 25
ER -