Effects of impurities on Tamm-like lanthanide-metal surface states
Materials Science
2009-11-13 v1
Abstract
The effects of isolated residual-gas adsorbates on the local electronic structure of the Dy(0001) surface were spatially mapped by scanning tunneling microscopy and spectroscopy at 12 K. Less than 15 A away from an adsorbate, a strong reduction of the intensity and a significant increase of the width of the majority component of the surface state due to impurity scattering were observed, with essentially no change of the minority component; this reflects a high lateral localization of the Tamm-like surface state. Furthermore, an adsorbate-induced state was found that behaves metastable.
Keywords
Cite
@article{arxiv.0708.2306,
title = {Effects of impurities on Tamm-like lanthanide-metal surface states},
author = {D. Wegner and A. Bauer and G. Kaindl},
journal= {arXiv preprint arXiv:0708.2306},
year = {2009}
}
Comments
5 pages, 4 figures, accepted as Brief Report for Physical Review B