Abstract

Present theory of field evaporation assumes it to be a thermally activated process. Recent measurements of the charges of the field evaporated ions show that the relative abundance of the ionic species changes rapidly with emitter temperature. The thermally activated process fails to explain this rapid change. By considering field evaporation as combinations of thermal excitation, atomic or ionic tunneling, and electronic transition processes, qualitative agreement with the experiments is obtained.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call