High Data Rate Spin-Wave Transmitter

Spin-wave devices have recently become a strong competitor in computing and information processing owing to their excellent energy efficiency. Researchers have explored magnons, the quanta of spin-waves, as an information carrier and great progress has been made in exciting and transporting these spin-waves. However, most transmission designs remain immature in terms of data rate and information complexity as they could only send, detect and utilize simple spin-wave pulses. In this work, using micromagnetic simulations, we first demonstrate a spin-wave transmitter that could operate reliably at a data rate of 4 Gbps over several microns while maintaining a low bit error rate. A benchmarking on energy consumption against the current CMOS circuits is conducted. Amplitude shift keying modulation technique is used, where the information is encoded into the amplitude of the spin-waves. We show that this device can be either directly connected into pure-magnon circuits with no add-ons or integrated into modern electronic networks with appropriate converters. For the latter case, a demodulation and detection circuit has been designed.