Gate-tunable graphene-based Hall sensors on flexible substrates with increased sensitivity
Gate-tunable graphene-based Hall sensors on flexible substrates with increased sensitivity
Abstract We demonstrate a novel concept for operating graphene-based Hall sensors using an alternating current (AC) modulated gate voltage, which provides three important advantages compared to Hall sensors under static operation: (1) The sensor sensitivity can be doubled by utilizing both n- and p-type conductance. (2) A static magnetic field …