Understanding how high electric fields influence metal surfaces is essential for advancing atomic-scale characterization techniques. In this talk, I will present our theoretical investigations into electric field effects on metals, using density functional theory (DFT) calculations to provide insights relevant to experimental observations.
Firstly, we investigate vacancy formation in Ni and...
Local contrast in FIM - opportunities and limits of interpretation by comparison to theory
Recent treatments of field-ion (FI) imaging theory (e.g., [1]) differ from older treatments (e.g., [2]). Modern theories consider the availability of in-specimen final electron states. Particularly with alloy specimens, this is long overdue and welcome. However, aspects of modern theories seem incompatible with older theories firmly backed by experiment, or incompatible with scientific...
