Patent ID: 8748950

Claim:
A reconfigurable device comprising: a first insulating layer; a second insulating layer; and a nanoscale quasi one- or zero-dimensional electron gas region disposed at an interface between the first and second insulating layers, wherein the device (A) is reconfigurable by applying an external electrical field to the electron gas to change the conductivity of the electron gas region and (B) has a structure with characteristics selected from the group consisting of the following: (i) said device further comprises at least one other nanoscale quasi one- or zero-dimensional electron gas region, wherein said at least two electron gas regions are configured in a substantially cross shape, and wherein the reconfigurable device is configured as a magnetic field sensor; (ii) said first and second insulating layers include a polar insulating layer and a non-polar insulating layer, wherein the nanoscale quasi one- or zero-dimensional electron gas has a gap formed therein, and wherein the reconfigurable device is configured as a reconfigurable photodetector; and (iii) the electron gas region comprises at least one memory cell, and wherein the reconfigurable device is configured as a memory device.