Interaction-induced oscillations of the tunneling density of states in a   non-quantizing magnetic field
  We study tunneling into interacting disordered two-dimensional electron gas in a non-quantizing magnetic field, which does not cause the standard de Haas-- van Alphen oscillations. Interaction induces a new type of oscillations in the tunneling density of states with the characteristic period of cyclotron quantum. 
A.M. Rudin, I.L. Aleiner, and L.I. Glazman