Over the past decade a large family of spintronic devices have been proposedas candidates for replacing CMOS for future digital logic circuits. Using therecently developed Modular Approach framework, we investigate and identify thephysical bottlenecks and engineering challenges facing current spintronicdevices. We then evaluate how systematic advancements in material propertiesand device design innovations impact the performance of spintronic devices, asa possible continuation of Moore's Law, even though some of these projectionsare speculative and may require technological breakthroughs. Lastly, weillustrate the use of the Modular Approach as an exploratory tool forprobabilistic networks, using superparamagnetic magnets as building blocks forsuch networks. These building blocks leverage the inherent physics ofstochastic spin-torque switching and could provide ultra-compact and efficienthardware for beyond-Boolean computational paradigms.
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