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Graphene on Ir(111) characterized by angle-resolved photoemission (CROSBI ID 171865)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Kralj, Marko ; Pletikosić, Ivo ; Petrović, Marin ; Pervan, Petar ; Milun, Milorad ; N'Diaye, Alpha T. ; Busse, Carsten ; Michely, Thomas ; Fujii, Jun ; Vobornik, Ivana Graphene on Ir(111) characterized by angle-resolved photoemission // Physical review. B, Condensed matter and materials physics, 84 (2011), 7; 075427-1-075427-8. doi: 10.1103/PhysRevB.84.075427

Podaci o odgovornosti

Kralj, Marko ; Pletikosić, Ivo ; Petrović, Marin ; Pervan, Petar ; Milun, Milorad ; N'Diaye, Alpha T. ; Busse, Carsten ; Michely, Thomas ; Fujii, Jun ; Vobornik, Ivana

engleski

Graphene on Ir(111) characterized by angle-resolved photoemission

Angle-resolved photoelectron spectroscopy (ARPES) is extensively used to characterize the dependence of the electronic structure of graphene on Ir(111) on the preparation process. ARPES findings reveal that temperature-programmed growth alone or in combination with chemical vapor deposition leads to graphene displaying sharp electronic bands. The photoemission intensity of the Dirac cone is monitored as a function of the increasing graphene area. Electronic features of the moiré superstructure present in the system, namely, minigaps and replica bands are examined and used as robust features to evaluate graphene uniformity. The overall dispersion of the π band is analyzed. Finally, by the variation of photon energy, relative changes of the π and σ band intensities are demonstrated.

graphene; electronic structure; angle-resolved photoelectron spectrocsopy; scanning tunneling microscopy

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Podaci o izdanju

84 (7)

2011.

075427-1-075427-8

objavljeno

1098-0121

10.1103/PhysRevB.84.075427

Povezanost rada

Fizika

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