Logic Devices with Spin Wave Buses: Potential Advantages and Shortcoming

The authors analyze the performance and estimate the efficiency of the spin-wave based logic devices. The main potential advantage of using spin wave for information transmission and processing is that a bit of information can be transmitted without use of an electric current. Spin-wave based devices may find an application as an interface between the electronic and magnetic circuits. The authors show the schematics of the integration of the spin-wave based devices with conventional electron-based circuit. The input information is received in the form of voltage pulses. Next, it is converted into the spin wave signals, where logic state 1 and 0 corresponds to the phases of the spin waves. Spin-wave based device accomplishes computation using spin wave signals and provides the output on the form of voltage pulses.