Ultra-Low Power All Spin Logic Device Acceleration based on Voltage Controlled Magnetic Anisotropy

摘要

The considerable power consumption on logic system will be an unavoidable bottleneck with the downscaling of technology node. Spintronic logic devices are considered as the promising solution due to its low-power potential. Among them, all spin logic device (ASLD) has drawn exceptional interests as it utilizes pure spin current instead of charge current. However, the relatively low efficiency of spin injection and detection hinders its development and application, especially in aspect of speed. In this paper, we apply the voltage controlled magnetic anisotropy (VCMA) mechanism to reduce the spin current density threshold of magnetization switching, which greatly accelerates logic operation. Through developing an accurate physics based model, micromagnetic and mixed SPICE simulations have been carried out to validate the acceleration process. This acceleration will be of significance for using electron spin for logic application.