Electron spin resonance study of carbon nanotubes Original Research Article

The electron spin resonance of multiwall carbon nanotubes has been measured in the temperature range 100–550 K. The spin paramagnetic susceptibility and g-shift are connected with 2-D current carriers and low density of localized centers. The temperature dependence of the g-factor and spin paramagnetic susceptibility are well described in terms of the band model of quasi-two-dimensional graphite. The density of current carriers and localized centers are evaluated.