Fig. 5: Voltage and time dependence of local piezo response.
From: Voltage controlled Néel vector rotation in zero magnetic field
a Bias-off PFM amplitude (bottom panel) and phase (top panel) hysteresis loops measured in the Pt/B:Cr2O3(200 nm)/V2O3 structure. b PFM amplitude signal as a function of time elapsed after application of a positive (blue) and negative (red) poling pulses (7 V, 12.5 ms). Solid lines in b illustrate the logarithmic fit of the temporal decay of the effective piezoelectric coefficient d33(t) in accordance with a relaxation model for electric field-oriented PNRs.
