Pregled bibliografske jedinice broj: 524688
Trapping Surface Electrons on Graphene Layers and Islands
Trapping Surface Electrons on Graphene Layers and Islands // PHYSICAL REVIEW B, 85 (2012), 8; 081402-1 doi:10.1103/PhysRevB.85.081402 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 524688 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Trapping Surface Electrons on Graphene Layers and Islands
Autori
Niesner, Daniel ; Fauster, Thomas ; Dadap, Jerry I. ; Knox, Kevin R. ; Yeh, Po-Chun ; Bandari, Rohan ; Osgood, Richard M. ; Petrović, Marin ; Kralj, Marko
Izvornik
PHYSICAL REVIEW B (1098-0121) 85
(2012), 8;
081402-1
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
graphene; image potential states
Sažetak
We report the use of time- and angle-resolved two-photon photoemission to map the bound, unoccupied electronic structure of the weakly coupled graphene/Ir(111) system. The energy, dis- persion, and lifetime of the lowest three image-potential states are measured. In addition, the weak interaction between Ir and graphene permits observation of resonant transitions from an unquenched Shockley-type surface state of the Ir substrate to graphene/Ir image-potential states. The image-potential-state lifetimes are comparable to those of mid-gap clean metal surfaces. Evidence of localization of the excited electrons on single-atom-layer graphene islands is provided by coverage-dependent measurements.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
035-0352828-2840 - Elektronska i kristalna struktura poduprtih samoorganiziranih nano-sistema (Pervan, Petar, MZOS ) ( CroRIS)
Ustanove:
Institut za fiziku, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
