Pregled bibliografske jedinice broj: 695596
Confinement of Dirac electrons in graphene quantum dots
Confinement of Dirac electrons in graphene quantum dots // Physical Review B - Condensed Matter and Materials Physics, 89 (2014), 15; 155435-1 doi:10.1103/PhysRevB.89.155435 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 695596 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Confinement of Dirac electrons in graphene quantum dots
Autori
Jolie, Wouter ; Craes, Fabian ; Petrović, Marin ; Atodiresei, Nicolae ; Caciuc, Vasile, Blügel, Stefan ; Kralj, Marko ; Michely, Thomas ; Busse, Carsten
Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 89
(2014), 15;
155435-1
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Graphene ; Dirac electrons ; Quantum dots ; Confinement ; Scanning tunneling microscopy
Sažetak
We observe spatial confinement of Dirac states on epitaxial graphene quantum dots with low- temperature scanning tunneling microscopy after using oxygen as an intercalant to suppress the surface state of Ir(111) and to effectively decouple graphene from its metal substrate. We analyze the confined electronic states with a relativistic particle-in-a-box model and find a linear dispersion relation. The oxygen- intercalated graphene is p doped [ED=(0.64±0.07) eV] and has a Fermi velocity close to the one of free-standing graphene [vF=(0.96±0.07)×106 m/s].
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
