Light-induced superlow electric field for domain reversal in near-stoichiometric magnesium-doped lithium niobate J. Appl. Phys. 107, 063514 (2010) Formation of the dendrite-type self-organized domain structures during polarization reversal at elevated temperatures (above 230 C) has been revealed and studied in stoichiometric lithium niobate LiNbO 3 single crystals. Optical, confocal Raman, scanning electron, and piezoelectric force microscopy have been used for domain visualization. It has been shown experimentally that formation of the dendrite-like structures has been attributed to correlated nucleation caused by a field distribution in the vicinity of the charged domain walls. V C 2012 American Institute of Physics.