Abstract
A basic calculation of the work function and a surface potential of a single-crystal plane is presented. This first theory provides quantitative results for W(110). Smoluchowski's model is used to determine an effective surface pseudopotential, and many-electron effects are included self-consistently and beyond the local-density approximation through a gradient-expansion formalism. Some limitations of the local-density approximation are revealed. Another explanation for the experimental work-function anomaly is offered.
- Received 27 August 1970
DOI:https://doi.org/10.1103/PhysRevLett.25.1023
©1970 American Physical Society
