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Problem Addressed

Spin-electronic (spintronics) memory uses electron spin for logic and sensing. Heat loss from associated charge currents limits the potential applications in computing technology. Superconducting electronics do not rely on spin and offer a loss-less alternative with significantly higher clock speeds. The Josephson junction is a versatile superconducting device that uses Interfacial Exchange Field (IEF) from ferromagnetic insulators to control conventional superconductivity. For standard von Neumann architectures, memory and logic are separated, thus adding to computation time. The presented technology integrates a nonvolatile memory and readout in the same structure at ultralow power and ultrafast computation time.