Graphene-based Mid-infrared Photodetectors and Spin Transport Devices

Abstract

  High-mobility graphene is fabricated on hexagonal boron nitride (h-BN) using a micromechanical cleavage and dry transfer technique. We demonstrate the photovoltaic effect due to the cyclotron resonance in graphene/h-BN under quantized Hall regime and the electrical spin injection into graphene through a single-layer h-BN tunnel barrier.