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Multiwall Carbon Nanotubes as Quantum Dots

Multiwall Carbon Nanotubes as Quantum Dots

We have measured the differential conductance of individual multiwall carbon nanotubes. Coulomb blockade and energy level quantization are observed. The electron levels are nearly fourfold degenerate (including spin) and their evolution in magnetic field (Zeeman splitting) agrees with a g factor of 2. In zero magnetic field the sequential filling …