This paper presents a computational study of logic devices built from single-domain Co/Pt nanomagnets, where magnetic properties of the dots are engineered by an inhomogenous focused ion beam (FIB) irradiation. We develop a micromagnetic model for such Co/Pt dots and show that their reversal behavior and coupling to neighboring dots can be precisely engineered by the dose and spatial distribution of the irradiation. We demonstrate that magnetic logic circuits and nonvolatile memory devices with attractive performance figures can be built from asymmetrically irradiated dots.

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PROJECT TITLE :Reviews [review of A science of operations: machines, logic, and the invention of programming (Priestley, M.; 2011) and Moving targets: Elliott-automation and the dawn of the computer age in Britain (Lavington,
PROJECT TITLE :On-Chip Clocking of Nanomagnet Logic Lines and GatesABSTRACT:The nanomagnet logic (NML) devices considered here are variants of proposed components for the edge-driven, quantum-dot cellular automata device architecture,
PROJECT TITLE :Shape Engineering for Controlled Switching With Nanomagnet LogicABSTRACT:We demonstrate that in circuits and systems that comprised of nanoscale magnets, magnet-shape-dependent switching properties can be used to

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