Abstract:The purpose of this work is to identify the field evaporation mechanism associated with charge density distribution under extreme fields, linking atom probe tomography (APT) experiments with density functional theory (DFT) modeling. DFT is used to model a materials surface bonding, which affects the evaporation field of the surface atoms under high electric fields. We show how the evaporation field of atoms is related to the charge density by comparing the directionality and localization of the electrons with … Show more
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