Size-dependent Surface States on Strained Cobalt Nanoislands on Cu(111)

M. V. Rastei; B. Heinrich; L. Limot; P. A. Ignatiev; V. S. Stepanyuk; P. Bruno; J. P. Bucher

doi:10.1103/PhysRevLett.99.246102

Size-dependent Surface States on Strained Cobalt Nanoislands on Cu(111)

Materials Science 2014-09-25 v1 Strongly Correlated Electrons

Authors: M. V. Rastei , B. Heinrich , L. Limot , P. A. Ignatiev , V. S. Stepanyuk , P. Bruno , J. P. Bucher

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Abstract

Low-temperature scanning tunneling spectroscopy over Co nanoislands on Cu(111) showed that the surface states of the islands vary with their size. Occupied states exhibit a sizeable downward energy shift as the island size decreases. The position of the occupied states also significantly changes across the islands. Atomic-scale simulations and ab inito calculations demonstrate that the driving force for the observed shift is related to size-dependent mesoscopic relaxations in the nanoislands.

Keywords

surface science

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@article{arxiv.0709.1631,
  title  = {Size-dependent Surface States on Strained Cobalt Nanoislands on Cu(111)},
  author = {M. V. Rastei and B. Heinrich and L. Limot and P. A. Ignatiev and V. S. Stepanyuk and P. Bruno and J. P. Bucher},
  journal= {arXiv preprint arXiv:0709.1631},
  year   = {2014}
}

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4 pages, 4 figures

Size-dependent Surface States on Strained Cobalt Nanoislands on Cu(111)

Abstract

Keywords

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