Macroscopic-Range Correlations in an Asymmetric Quantum Hall System
  A local photo-response of an asymmetric quantum Hall system in tilted magnetic field is demonstrated to be a complicate non-monotonic function of macroscopic distances to the sample edges. A local photo-response in the dark has been observed caused by illumination of the sample arias remote on a macroscopic distances. These macroscopic-range correlatons indicate the presence of a macroscopic ordering of electrons in the system. 
S. A. Emelyanov