ISSN:
1432-0630
Schlagwort(e):
PACS: 73.20; 61.16; 72.10
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Maschinenbau
,
Physik
Notizen:
Abstract. We observe the partial confinement of the two-dimensional electron gas of an s-p-like surface state by the regular step distribution of several vicinal Cu(111) surfaces. The spatial distribution of the surface state is visualized by scanning tunneling microscopy. Local tunneling spectroscopy reveals a shift of the maximum of the density of states of the surface state towards the Fermi level, which correlates with the size of the terraces. The average shift is also measured by angle-resolved photoemission and found to be consistent with a one-dimensional Kronig-Penney model.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01542871
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