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Pregled bibliografske jedinice broj: 695596

Confinement of Dirac electrons in graphene quantum dots


Jolie, Wouter; Craes, Fabian; Petrović, Marin; Atodiresei, Nicolae; Caciuc, Vasile, Blügel, Stefan; Kralj, Marko; Michely, Thomas; Busse, Carsten
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)


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



POVEZANOST RADA


Projekt / tema
DAAD-MZOS

Ustanove
Institut za fiziku, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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