Domain mechanism of dielectric losses in the triglycine sulfate crystal

ABSTRACT

The 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.

KEYWORDS:

• Triglycine sulfate
• dielectric loss
• P-E loop
• domain wall
• point defect

Funding

Russian Foundation for Basic Research funded the reported study (grant no. 16-42-360412).