Fig. 4: Charge and electric field (E) distribution for both the down and up states of polarisation (P) in HZO. | Nature Communications

Fig. 4: Charge and electric field (E) distribution for both the down and up states of polarisation (P) in HZO.

From: Mapping electric fields and observation of ferroelectric domain switching in hafnia-zirconia devices by electron holography

Fig. 4: Charge and electric field (E) distribution for both the down and up states of polarisation (P) in HZO.

Are represented free charges on electrodes, interface trapped charges, ferroelectric bound charges. Dielectric bound charges have been omitted. Charges on electrode and interface oppose ferroelectric bound charges but not completely, leaving a residual electric field.

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