We investigated the switching of resistance between two discrete values, known as random telegraph noise (RTN), observed in carbon nanotube peapod transistors [single-walled carbon nanotubes (SWNTs), C60-peapods, and Cs-encapsulated SWNTs (so-called Cs-peapods)]. By analyzing the features of the RTN, we suggest that this noise for SWNTs is due to the random transition of defects between two meta-stable states, activated by inelastic scattering with ballistic electrons. The noise for C60-peapods (Cs-peapods) is attributed to the motion of C60s (Cs) in the nanotubes.
Bibliographical noteFunding Information:
This research was supported by KISTEP under the contract No. M6-0301-00-0005, Ministry of Science and Technology (MOST), Korea. The work done in Sweden was supported by the Swedish Foundation for Strategic Research (Caramel Consortium) and STINT. Partial support for YWP was done by the Royal Swedish Academy of Sciences.
- Defect motions
- Metallic single wall carbon nanotube
- Random telegraph noise