Friedel oscillations of the magnetic field penetration in systems with   spatial quantization
  The magnetic field, applied to a size-quantized system produces equilibrium persistent current non-uniformly distributed across the system. The distributions of dia- and paramagnetic currents and magnetic field in a quantum well is found. We discuss the possibility of observation of field distribution by means of NMR. 
M. V. Entin, L. I. Magarill, and M. M. Mahmoodian