Wasniowska, M., Ignatiev, P. A., Stepanyuk, V. S., Kirschner, J.
Physical Review B 79, (16), pp 165411/1-5 (2009)
The electronic structure of small Fe nanoclusters was investigated by means of scanning tunneling microscopy/spectroscopy and ab initio calculations. Unoccupied electronic states of Fe were found for all the examined nanostructures. Ab initio calculations clarify that STS actually probed s-p electrons resonantly scattered at dz2 states of Fe nanostructures.
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(Reference: TH-2009-09)