One-dimensional versus two-dimensional electronic states in vicinal surfaces

Details One-dimensional versus two-dimensional electronic states in vicinal surfaces One-dimensional versus two-dimensional electronic states in vicinal surfaces

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005njph....7..101o&link_type=abstract

New Journal of Physics, Volume 7, Issue 1, pp. 101 (2005).

Physics

17

Scientific paper

Vicinal surfaces with periodic arrays of steps are among the simplest lateral nanostructures. In particular, noble metal surfaces vicinal to the (1 1 1) plane are excellent test systems to explore the basic electronic properties in one-dimensional superlattices by means of angular photoemission. These surfaces are characterized by strong emissions from free-electron-like surface states that scatter at step edges. Thereby, the two-dimensional surface state displays superlattice band folding and, depending on the step lattice constant d, it splits into one-dimensional quantum well levels. Here we use high-resolution, angle-resolved photoemission to analyse surface states in a variety of samples, in trying to illustrate the changes in surface state bands as a function of d.

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