Abstract
We report results of the first ab initio self-consistent (SC) calculations of the electronic structure of a Cu (001) monolayer using the newly developed numerical-basis-set linear-combination-of-atomic-orbitals method for thin films. The $d$ holes found in the non-SC calculations of Cooper, and in those reported here, are not found to exist when the calculations are carried to self-consistency. The calculated narrowing of the $d$-band width of the monolayer relative to the bulk is consistent with several photoemission experiments.
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