Rights statement: This is the author’s version of a work that was accepted for publication in Applied Surface Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Surface Science, 433, 2018 DOI: 10.1016/j.apsusc.2017.10.069
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Coverage evolution of the unoccupied Density of States in sulfur superstructures on Ru(0001)
AU - Pisarra, M.
AU - Bernardo Gavito, Ramon
AU - Navarro, Juan Jesús
AU - Black, Andrés
AU - Diaz, Cristina
AU - Calleja, Fabián
AU - Granados, Daniel
AU - Miranda, Rodolfo
AU - Martin, Fernando
AU - Vázquez De Parga, Amadeo L.
N1 - This is the author’s version of a work that was accepted for publication in Applied Surface Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Surface Science, 433, 2018 DOI: 10.1016/j.apsusc.2017.10.069
PY - 2018/3
Y1 - 2018/3
N2 - Sulfur adsorbed on Ru(0001) presents a large number of ordered structures. This characteristic makes S/Ru(0001) the ideal system to investigate the effect of different periodicities on the electronic properties of interfaces. We have performed scanning tunneling microscopy/spectroscopy experiments and density functional theory calculations showing that a sulfur adlayer generates interface states inside the Γ directional gap of Ru(0001) and that the position of such states varies monotonically with sulfur coverage. This is the result of the interplay between band folding effects arising from the new periodicity of the system and electron localization on the sulfur monolayer. As a consequence, by varying the amount of sulfur in S/Ru(0001) one can control the electronic properties of these interfacial materials.
AB - Sulfur adsorbed on Ru(0001) presents a large number of ordered structures. This characteristic makes S/Ru(0001) the ideal system to investigate the effect of different periodicities on the electronic properties of interfaces. We have performed scanning tunneling microscopy/spectroscopy experiments and density functional theory calculations showing that a sulfur adlayer generates interface states inside the Γ directional gap of Ru(0001) and that the position of such states varies monotonically with sulfur coverage. This is the result of the interplay between band folding effects arising from the new periodicity of the system and electron localization on the sulfur monolayer. As a consequence, by varying the amount of sulfur in S/Ru(0001) one can control the electronic properties of these interfacial materials.
KW - Surface superstructures
KW - sulfur
KW - Ru
KW - scanning tunneling microscopy/spectroscopy
KW - band folding
U2 - 10.1016/j.apsusc.2017.10.069
DO - 10.1016/j.apsusc.2017.10.069
M3 - Journal article
VL - 433
SP - 300
EP - 305
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
ER -