| AVS 54th International Symposium | |
| Nanometer-scale Science and Technology | Tuesday Sessions |
| Session NS-TuP |
| Session: | Nanometer-scale Science and Technology Poster Session I |
| Presenter: | M. Yilmaz, Columbia University |
| Authors: | M. Yilmaz, Columbia University N. Zaki, Columbia University S. Wang, Columbia University K. Knox, Columbia University D.V. Potapenko, Columbia University J. Dadap, Columbia University R.M. Osgood, Columbia University T. Valla, Brookhaven National Laboratory P. Johnson, Brookhaven National Laboratory |
| Correspondent: | Click to Email |
Vicinal metal surfaces have attracted much attention in recent years as templates for self assembled nanostructures. We will present an STM and photoemission study of Co/Cu(775). Using STM, we observed that the substrate acts as a template for the growth of Co. Cobalt grows in the form of anisotropic islands, the structure of which changes with coverage. The effect of these nanostructures on the surface electronic structure is investigated by means of high resolution angle resolved photoemission spectroscopy (ARPES). At very low coverages, cobalt alters the modulation plane of the Cu surface state from surface modulation to terrace modulation. As the coverage increased an additional Cu derived surface state at a higher binding energy appears. Both states are supressed as more cobalt is deposited on the surface. Cobalt d-band features are relatively flat and consistent with experiments performed on other Co/Cu systems.