Domain mechanism of dielectric losses in the triglycine sulfate crystal

ABSTRACTThe dependences of the dielectric loss tgδ on amplitude of the electric field E∼ in multidomain triglycine sulfate single crystal below the phase transition temperature were studied. It was found that in weak fields the rapid growth of tgδ with field E∼ occurs, then the dependence tgδ(E∼) passes the peak, and then decreases. The results discussed in the framework of model taking into account the interaction between domain walls and point defects.