Abstract
The structure and electronic properties of potassium-doped single-wall carbon nanotubes have been studied by conduction electron spin resonance, conductivity and x-ray diffraction (XRD), using in situ electrochemical methods. The spin susceptibility of the K-saturated phase is independent of temperature; a lower bound is At 300 K both and increase monotonically and reversibly with K/C. The spin relaxation rate and g factor do not change with doping, and XRD reveals an irreversible loss of crystallinity upon doping. We propose an inhomogeneous doping model to explain these results.
- Received 3 May 2000
DOI:https://doi.org/10.1103/PhysRevB.62.R4845
©2000 American Physical Society