Formation of dispersive hybrid bands at an organic-metal interface

Details Formation of dispersive hybrid bands at an organic-metal interface Formation of dispersive hybrid bands at an organic-metal interface

2008-03-10

arxiv.org/abs/0803.1377v1

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevLett.100.156805

An electronic band with quasi-one dimensional dispersion is found at the interface between a monolayer of a charge-transfer complex (TTF-TCNQ) and a Au(111) surface. Combined local spectroscopy and numerical calculations show that the band results from a complex mixing of metal and molecular states. The molecular layer folds the underlying metal states and mixes with them selectively, through the TTF component, giving rise to anisotropic hybrid bands. Our results suggest that, by tuning the components of such molecular layers, the dimensionality and dispersion of organic-metal interface states can be engineered.

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