First-Principles Calculation of Be(0001) Thin Films: Quantum Size Effect and Adsorption of Atomic Hydrogen

Details First-Principles Calculation of Be(0001) Thin Films: Quantum Size Effect and Adsorption of Atomic Hydrogen First-Principles Calculation of Be(0001) Thin Films: Quantum Size Effect and Adsorption of Atomic Hydrogen

2007-03-13

arxiv.org/abs/cond-mat/0703331v1

Physics

Condensed Matter

Materials Science

8 figures

Scientific paper

We have carried out first-principles calculations of Be(0001) thin films to study the oscillatory quantum size effects exhibited in the surface energy, work function, and binding energy of the atomic hydrogen monolayer adsorption. The prominent enhancement of the surface density of states at the Fermi level makes Be(0001) thin films more metallic compared to the crystalline Be. As a result, the calculated energetics of Be films and the properties of atomic H adsorption onto Be(0001) surface are featured by a quantum oscillatory behavior. Furthermore, The prominent change in the Be(0001) surface electronic structure by the atomic hydrogen adsorption has also been shown.

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