Voltage-dependent parameter extraction for graphene nanoribbon interconnect model through ab initio approach

This paper presents electrical parameter extraction for metallic graphene nanoribbon (GNR) interconnects utiliz- ing ab initio approach. Unlike the studies taking the kinetic inductance, quantum capacitance and Fermi velocity as constant values, voltage-dependencies of these parameters are obtained for GNR transmission line model. The variations of the kinetic energy and the current by the applied voltage are taken as bases for voltage-dependent kinetic inductance calculation. Quantum capacitance and the Fermi velocity are also computed from the kinetic inductance variation. It is concluded that voltage-dependencies of the kinetic inductance and the quantum capac- itance have to be taken into account for accurate GNR modelling in nanoelectronic design.