Random telegraph noise in metallic single-walled carbon nanotubes

Hyun Jong Chung, Tae Woo Uhm, Sung Won Kim, Young Gyu You, Sang Wook Lee, Sung Ho Jhang, Eleanor E.B. Campbell, Yung Woo Park

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


We have investigated random telegraph noise (RTN) observed in individual metallic carbon nanotubes (CNTs). Mean lifetimes in high- and low-current states, τhigh and τlow, have been studied as a function of bias-voltage and gate-voltage as well as temperature. By analyzing the statistics and features of the RTN, we suggest that this noise is due to the random transition of defects between two metastable states, activated by inelastic scattering with conduction electrons. Our results indicate an important role of defect motions in the 1/f noise in CNTs.

Original languageEnglish
Article number193102
JournalApplied Physics Letters
Issue number19
StatePublished - 12 May 2014


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