Regensburg 2016 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
O: Fachverband Oberflächenphysik
O 68: Nanostructures at Surfaces: 1D, 2D Structures and Networks
O 68.2: Poster
Mittwoch, 9. März 2016, 18:15–20:30, Poster A
Structure of Cu(100)-c(2x2)N surfaces — •Julia Andrews, Kariman Elshimi, Torsten Veltum, and Mathias Getzlaff — Institut für angewandte Physik, Universität Düsseldorf, 40225 Düsseldorf
Nanostructured surfaces have become of significant interest in the field of surface science over recent years. The understanding of self-arranged structures is relevant for instance for the use as a pattern for nanoparticle deposition. We study the pattern that nitrogen forms when reacting with a Cu(100) surface.
Under ultra-high vacuum conditions, we first proceed to a standard cleaning of the copper crystal by sputtering with argon followed by annealing. To prepare the Cu(100)-c( 2 ×2)N surface we sputter with activated nitrogen followed again by annealing.
We examine the crystal structure by low energy electron diffraction (LEED). With a scanning tunnelling microscope (STM) we observe how the nitrogen arranges itself when forming CuxN.