The electronic properties of Fe islands grown on reconstructed Au(111) were investigated by means of scanning tunneling spectroscopy and density functional theory calculations. A characteristic peak measured in the electron local density of states at Fermi level indicates the presence of a non-dispersive minority Fe dz2 state. The peak energy was measured to shift from occupied to unoccupied states as a function of position within Fe islands. We related this effect to the reconstruction-induced local Fe-Fe bond length variation.
Strain effect on local electronic properties of Fe nanoislands grown on Au(111)
DONATI, FABIO;PASSONI, MATTEO;CASARI, CARLO SPARTACO;BOTTANI, CARLO ENRICO;LI BASSI, ANDREA
2011-01-01
Abstract
The electronic properties of Fe islands grown on reconstructed Au(111) were investigated by means of scanning tunneling spectroscopy and density functional theory calculations. A characteristic peak measured in the electron local density of states at Fermi level indicates the presence of a non-dispersive minority Fe dz2 state. The peak energy was measured to shift from occupied to unoccupied states as a function of position within Fe islands. We related this effect to the reconstruction-induced local Fe-Fe bond length variation.File in questo prodotto:
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