NANOELECTRONICS USING CONDUCTANCE QUANTIZATION

Using a simple adiabatic transport model, we show that basic electroni c functions may theoretically be achieved by manipulating a single pro pagating mode in a system with quantized levels of conduction, For a q uantum point contact with a centered and tunable depletion island form ed in a two-dimensional electron gas, a sinusoidal island bias results in a pulsed source-drain conductance. For single, multiple parallel, and multiple independent configurations of this device, the functions of a digital clock, digital frequency doubler, and hexadecimal counter are described, (C) 1998 American Institute of Physics. [S0021-8979(98 )00107-8].