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 nondispersive 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) / F. Donati, G. Fratesi, M. Passoni, C.S. Casari, A. Mairov, C.E. Bottani, M.I. Trioni, A. Li Bassi. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - 83:15(2011 Apr 07), pp. 153404.1-153404.4. [10.1103/PhysRevB.83.153404]
Strain effect on local electronic properties of Fe nanoislands grown on Au(111)
G. FratesiSecondo
;M.I. Trioni;
2011
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 nondispersive 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.
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