Expression of Concern: RC circuit model for multi-walled carbon nanotubes

To alleviate the problems associated with current copper interconnect technology, multi-walled carbon nanotubes (MWCNTs) have been proposed as a potential solution for on-chip communication in VLSI applications. In this paper, we develop an equivalent RC circuit model for MWCNT interconnect that captures both DC conductance and high frequency impedance due to capacitive effects. Based on the circuit model, we find that MWCNT-based interconnect can have substantially less delay than copper wires in global interconnect applications.