Fig. 4: Repetition tests of AC electric field de-poling for AC poled PIN-PMN-PT single crystals. | Nature Communications

Fig. 4: Repetition tests of AC electric field de-poling for AC poled PIN-PMN-PT single crystals.

From: Electrical de-poling and re-poling of relaxor-PbTiO3 piezoelectric single crystals without heat treatment

Fig. 4

a Schematic illustrations of repetition tests with multiple poling and de-poling processes that were conducted on the PIN-PMN-PT single crystals. Here, the optimized ACP condition (a peak amplitude of 10 kV/cm, 20 cycles and 30 Hz) was used for the poling while a peak amplitude of 4 kV/cm, 10 cycles and 1 Hz were adopted for the de-poling. b Dielectric constants and (c) piezoelectric coefficients of the PIN-PMN-PT single crystals during multiple poling and de-poling processes to confirm the reproducibility of the de-poling induced by AC electric fields. d Impedance spectrum of crystals after multiple poling and de-poling processes to ensure its effectiveness.

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