  Recent advances in graphene nanoribbon-based research have demonstrated the
controlled synthesis of chiral graphene nanoribbons (cGNR) with atomic
precision using strategies of on-surface chemistry. However their electronic
characterization, including typical figures of merit like band gap or frontier
bands effective masses, has not yet been reported. In this work, we provide a
detailed characterization of (3,1)-cGNRs on Au(111). The structure and epitaxy,
as well as the electronic band structure of the ribbons, are analyzed by means
of scanning tunneling microscopy and spectroscopy, angle resolved photoemission
and density functional theory.
