MOBILE2DG · Mobile Two Dimensional Gas

In certain physical interfaces between two different materials, or in physical surfaces, electrons or holes behave as if they were confined to two dimensions, forming a 2-dimensional gas, [2DG] and showing exceptional properties, such as very high mobility. 2DG is a common phenomenon widely used, e.g. in Metal-oxide-semiconductor field effect transistors (MOSFETs), currently used in nearly all microprocessors. 2DG is usually confined to physical interfaces between two different materials and its physical location is fixed.Imagine now a new type of 2DG, which is not confined to a physical interface but can be created electrically inside a pure single material