Theory of quantum size effects in thin Pb(111) films
- Citation:
- Wei, C. M., & Chou M. Y. (2002). Theory of quantum size effects in thin Pb(111) films. Physical Review B. 66, 4., Dec, Number 23
Abstract:
We have carried out first-principles calculations of Pb (111) films up to 25 monolayers to study the oscillatory quantum size effects exhibited in the surface energy and work function. These oscillations are correlated with the thickness dependence of the energies of confined electrons, which can be properly modeled by an energy-dependent phase shift of the electronic wave function upon reflection at the interface. It is found that a quantitative description of these quantum size effects requires a full consideration of the crystal band structure.
Notes:
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