Graphene-based magnetoresistance device utilizing strip pattern geometry

The idea of a raster pattern magnetoresistor made of thin films of III–V compounds and a metallic layer has been known for over fifty years. Based on this knowledge, we present the construction of a magnetoresistor made of combined graphene and metallic strip patterns. The presented device is implemented using a monolayer of graphene epitaxially grown on a semi-insulating substrate. A graphene strip pattern magnetoresistor gives a promising wide range of practical applications due to its very high sensitivity combined with the mono-atomic thickness of the sensitive layer, the simplicity of realization, and a very convenient principle of sensor operation assuming only the usage of two electrical terminals.