Dielectric transparency induced by hetero-phase oscillations near the   phase transition of relaxor ferroelectrics
  We report the observation of a "transparency window" in the dielectric resonant absorption spectrum of the relaxor ferroelectric K1-xLixTaO3 (KLT) in the vicinity of its weakly first order transition. This phenomenon is shown to be conceptually similar to the electro-magnetically induced transparency (EIT) phenomenon observed in atomic vapors, which can be modeled classically by a driven master -slave oscillator system. In KLT, it reveals the presence of macroscopic hetero-phase fluctuations and provides unique information on the nature and mechanism of the phase transition in relaxors. 
J. Toulouse, R.K. Pattnaik, L.A. Boatner
cond-mat.mtrl-sci cond-mat.other