Structure of an Elastic Lattice Pinned by Hopping Defects
  The translational order in a three-dimensional lattice pinned by hopping defects is studied. It is suggested that the equilibrium state of the lattice crosses from a glass to a crystal on the rate of hopping. It is argued that such a transition may exist in flux lattices of high-temperature superconductors due to the hopping of oxygen. 
Eugene M. Chudnovsky (CUNY Lehman College)