Transport in strongly disordered multiwalled carbon nanotubes

Abstract
We have studied magnetic field and temperature dependence of electron transport in chemical vapor deposition synthesized highly resistive multiwalled carbon nanotubes. The analysis of the weak-localization magnetoresistance according to electron-electron interaction theories leads to very small mean free paths, l<10nm. At lowest temperatures the sheet resistance is near RK=h/e2. Both of these observations suggest that our samples are close to the strong-localization limit.