Modulation of Luttinger Liquid Behavior by Multichannel Electron Transport in Aligned Multiwalled Carbon Nanotube Arrays

Abstract

In the case of one-dimensional systems, Luttinger liquid states are typically anticipated, which have previously been identified primarily in nanoscopic devices fabricated from isolated bundles of single- or multi-walled carbon nanotubes. In this study, the electrical transport properties of aligned multiwalled carbon nanotube arrays were investigated. The resistance of both aligned arrays and those covered with metal Mo exhibits a strong dependence on temperature, demonstrating a power-law relationship of R~T–α below 100K. The Luttinger liquid behavior was modulated by tuning the electron-transport channels via alerting the number of walls that contribute to the conductance within the multi-walled carbon nanotubes. The exponent α, derived theoretically as a parameter that depends on the number of conducting channels, exhibits minimal variation across the arrays and declines rapidly with the tubular structure opening due to the solid-solid reaction between the magnetron-sputtered molybdenum and the carbon atoms.