Unoccupied surface states on Ta(100) observed with inverse photoemission.

@article{Bartynski1987UnoccupiedSS,
  title={Unoccupied surface states on Ta(100) observed with inverse photoemission.},
  author={Bartynski and Gustafsson},
  journal={Physical review. B, Condensed matter},
  year={1987},
  volume={35 3},
  pages={
          939-945
        }
}
In an attempt to understand the interrelation of surface electronic structure and surface geometry, we have used inverse photoemission to measure the unoccupied surface states on the (100) face of tantalum. Tantalum has one fewer electron than tungsten and the Ta(100) surface is bulk terminated at room temperature, while the W(100) surface is reconstructed. We observe several well-defined features within 2 eV of the Fermi level in the Ta(100) spectra that show strong sensitivity to surface… CONTINUE READING

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