Nonlinear coherent transport through doped nanotube junctions

Amir A. Farajian, Keivan Esfarjani, Yoshiyuki Kawazoe

Research output: Contribution to journalArticlepeer-review

139 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)5084-5087
Number of pages4
JournalPhysical review letters
Issue number25
Publication statusPublished - 1999

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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