Naslov
Doping of epitaxial graphene on Ir(111)

Autori
Iva Šrut, Marin Petrović, Petar Pervan, Milorad Milun, Daniel Förster, Carsten Busse, Thomas Michely, Marko Kralj

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Verhandlungen der Deutschen Physikalischen Gesellschaft / - , 2011, 488-488

Skup
75th Annual meeting of the DPG and combined DPG spring meeting 2011

Mjesto i datum
Dresden, Njemačka, 13.03.2011. - 18.03.2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
graphene; Ir(111); doping

Sažetak
Graphene’s remarkable electronic properties give rise to great expectations of this new material for future electronic devices and spintronic applications. For such purposes a manipulation of its electronic band structure is desired. We have shown that it is possible to engineer the electronic structure of graphene by fine-tuning the Dirac cone of the model system, epitaxial graphene on Ir(111). We had intercalated several different materials, which led to the n-type doping of graphene: Cs, Li, Eu, and their combination. Doping with a specific material leads to different fine effects, such as: (a) gradual or stepwise doping, (b) apparent gap opening at the Dirac point, (c) group velocity changes, etc. We study these effects through direct comparison of the band structure, measured by angle resolved photoemission spectroscopy (ARPES).

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA