aIoffe Physical Technical Institute, Polytekhnicheskaya 26, 194021 St.-Petersburg, Russia;bInstitut für Technische Physik, TU-Braunschweig, Mendelssohnstrasse 2, D-38106 Braunschweig, Germany
Abstract:
In tilted magnetic fields a bilayer electron–hole system is found to generate a photocurrent under terahertz radiation as the system is tuned to electron cyclotron resonance conditions. The photoinduced current amplitude oscillates with the magnetic field in correlation with Shubnikov–de Haas oscillations for electrons. The phenomenon is accounted for by a photomagnetic effect in electron–hole systems in the quantum Hall regime and has potentialities for terahertz detection and spectroscopy.