Quantum electron transport through carbon nanotubes with electron-phonon coupling

Abstract

The channel-length dependence of the resistance of the carbon nanotubes on micron-order length is studied at finite temperature using the time-dependent wave-packet approach based on the Kubo formula within a tight-binding approximation. The authors clarify how the transport properties of the carbon nanotubes are changed from the ballistic to the diffusive regime due to electron-phonon scattering. They also obtain the reasonable mean free path, relaxation time, and temperature dependence of resistivity.