US Patent 9,806,710
United States Patent and Trademark Office
University of Iowa Research Foundation (Iowa City, IA, US)
A voltage-controlled magnetic based device is described that includes a magnetic insulator; a topological insulator adjacent the magnetic insulator; and magnetic dopants within the topological insulator. The magnetic dopants are located within an edge region of the topological insulator to inhibit charge current flow in the topological insulator during a switching operation using an applied electric field generating by applying a switching voltage across two electrodes at opposite sides of the topological insulator. Power dissipation due to carrier-based currents can be avoided or at least minimized by the magnetic dopants at the edges of the topological insulator.
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Flatté, Michael Voltage-controlled magnetic-based devices having topological insulator/magnetic insulator heterostructure. US Patent 9,806,710 filed March 31, 2016 and issued October 31, 2017. https://ir.uiowa.edu/patents/698