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. 2015 Jun 11;5:10571. doi: 10.1038/srep10571

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(a) The modules in the circuit library come in two broad categories, transport blocks (TB) based on the physics of transport and magnetic blocks (MB) based on the physics of magnetism. Solid blocks are presented in detail in the manuscript, dashed blocks (Spin pumping, Topological Insulators, Voltage-Controlled Magnetic Anisotropy) are envisioned modules for the future. Illustrative spin-circuits: (b) Spin-Valve (c) Non-local spin valve with inverse spin Hall effect (d) Spin-transfer-torque MRAM (e) Spin Switch: A proposed spin-logic device⁸.