Hamburg 2001 – scientific programme
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O: Oberflächenphysik
O 13: Postersitzung (Adsorption auf Oberfl
ächen, Oberfl
ächenreaktionen, Elektronische Struktur, Epitaxie und Wachstum, Halbleiteroberfl
ächen und Grenzfl
ächen, Oxide und Isolatoren)
O 13.40: Poster
Monday, March 26, 2001, 19:00–22:00, Foyer zu B
Tuning dimensionality by nanowire adsorption on layered materials — •Rainer Adelung1, Julia Brandt1, Kai Roßnagel1, Lutz Kipp1, Michael Skibowski1, Claudia Ramirez2, Thomas Strasser2, and Wolfgang Schattke2 — 1Institut für Experimentelle und Angewandte Physik, Universität Kiel, 24098 Kiel — 2Institut für Theoretische und Astrophysik, Universität Kiel, 24098 Kiel
The dimensionality of electronic states determines a number of physical
phenomena such as phase transitions, transport or superconductivity.
Employing scanning tunneling microscopy combined with angle resolved
photoemission spectroscopy we demonstrate how the dimensionality of
electronic states can be continuously tuned from
three to two dimensions [1]. This is achieved by adsorption of nanowires
on surfaces of layered crystals without changing the chemical
composition of the material. Exemplary results for Rb nanowires on
TiTe2 are discussed with help of electronic structure
calculations.
Adelung et al., Phys. Rev. Lett. (2001), in press.