High magnetic fields are an extremely powerful tool to investigate, to control and to manipulate the quantum properties of matter. In this talk I will present some recent results on the electronic properties of 2D materials (transition metal dichalcogenides MoS2 and WS2) which can be accessed by the combination of high magnetic and electric fields. In particular, I will show how you can transform an electrically insulation material into a superconductor with zero resistance and how this superconductivity surprisingly survives the high magnetic field of HFML.