Compact logic NAND-gate based on a single in-plane quantum-wire transistor

We propose and demonstrate the operation of a monolithic logic NAND-gate based on a single in-plane quantum-wire transistor (QWT). The QWT is controlled by two lateral gates which serve as input terminals with a nonlinear transfer characteristic. Logic operation is demonstrated by exploiting a gate voltage-dependent efficiency of the lateral gates. The compact logic NAND-gate features high input impedance, shows voltage gain, and operates at room temperature.