Abstract
This research on a fully voltage-driven spin-based computing device, the ``vTOPSS'', could promote significant gains in energy efficiency, beyond the state of the art. Thus far the challenge in spin-based devices has been related to the large electric current required, and the associated Joule heating. A vTOPSS overcomes such limitations by driving a magnetic insulator via spin accumulation, generated by applying an electric field across a proximal topological insulator. Current flows perpendicular to the surface of the topological insulator and perpendicular to the applied electric field, making it nondissipative. For binary switching operations, a vTOPSS could consume mere attojoules.
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