Contact: Justin Eure
DOE/Brookhaven National Laboratory
Caption: Electrostatic potential landscapes reconstructed from electron holography data with 15 volts of positive or negative current applied to the substrate (Nb-STO). The much steeper potential drop from the +15 V signifies a higher electric field, whereas the -15 V yielded a much flatter curve—indicating the charge asymmetry within the material.
Credit: Brookhaven National Laboratory
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