期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 18, 期 13, 页码 S27-S49出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/18/13/S03
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Vicinal surfaces of the ( 111) plane of noble metals are characterized by free-electron-like surface states that scatter at one-dimensional step edges, making them ideal model systems to test the electronic properties of periodic lateral nanostructures. Here we use high-resolution, angle-resolved photoemission to analyse the evolution of the surface state on a variety of vicinal surface structures where both the step potential barrier and the superlattice periodicity can vary. A transition in the electron dimensionality is found as we vary the terrace size in single-phase step arrays. In double-phase, periodic faceted surfaces, we observe surface states that characterize each of the phases.
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