Hauptseite > Publikationsdatenbank > Lateral scattering potential of the PTCDA/Ag(111) interface state |
Journal Article | FZJ-2018-06319 |
; ;
2018
Inst.
Woodbury, NY
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Please use a persistent id in citations: http://hdl.handle.net/2128/20267 doi:10.1103/PhysRevB.98.205429
Abstract: A modified scheme of scanning tunneling spectroscopy (STS) data analysis has been used to reconstruct the band structure of a strongly dispersive two-dimensional unoccupied electronic state located at the commensurate interface between a monolayer of PTCDA and Ag(111) surface up to the fourth band in the reduced Brillouin zone of the molecular monolayer. The two-dimensional scattering potential, evaluated with the help of the measured band structure data, is highly corrugated. This shows that the accepted picture, describing the interface state of PTCDA/Ag(111) as an upshifted Shockley state of Ag(111), is incomplete. Our findings indicate that the hybridization of unoccupied molecular orbitals of PTCDA on one of the two sublattices with the metals states of Ag(111) substantially influences the interface state properties.
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