Threshold Logic with Current-Driven Magnetic Domain Walls

2020/07/02 by Hu, Xuan, Hill, Brighton A., Garcia-Sanchez, Felipe +1
#Emerging Technologies (cs.ET) #FOS: Computer and information sciences #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall)

paper · doi:10.48550/arxiv.2007.00815

Abstract

The recent demonstration of current-driven magnetic domain wall logic [Z. Luo et al., Nature 579:214] was based on a three-input logic gate that was identified as a reconfigurable NAND/NOR function. We reinterpret this logic gate as a minority gate within the context of threshold logic, enabling a domain wall threshold logic paradigm in which the device count can be reduced by 80%. Furthermore, by extending the logic gate to more than three inputs of non-equal weight, an 87% reduction in device count can be achieved.

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