Decoupling and ordering of multilayer graphene on C-face 3C-SiC(111)

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Standard

Decoupling and ordering of multilayer graphene on C-face 3C-SiC(111). / Bouhafs, C.; Stanishev, V.; Zakharov, A. A.; Hofmann, T.; Kühne, P.; Iakimov, T.; Yakimova, R.; Schubert, M.; Darakchieva, V.

I: Applied Physics Letters, Vol. 109, Nr. 20, 203102, 14.11.2016.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

Bouhafs, C, Stanishev, V, Zakharov, AA, Hofmann, T, Kühne, P, Iakimov, T, Yakimova, R, Schubert, M & Darakchieva, V 2016, 'Decoupling and ordering of multilayer graphene on C-face 3C-SiC(111)', Applied Physics Letters, vol. 109, nr. 20, 203102. https://doi.org/10.1063/1.4967525

APA

Bouhafs, C., Stanishev, V., Zakharov, A. A., Hofmann, T., Kühne, P., Iakimov, T., Yakimova, R., Schubert, M., & Darakchieva, V. (2016). Decoupling and ordering of multilayer graphene on C-face 3C-SiC(111). Applied Physics Letters, 109(20), [203102]. https://doi.org/10.1063/1.4967525

CBE

Bouhafs C, Stanishev V, Zakharov AA, Hofmann T, Kühne P, Iakimov T, Yakimova R, Schubert M, Darakchieva V. 2016. Decoupling and ordering of multilayer graphene on C-face 3C-SiC(111). Applied Physics Letters. 109(20):Article 203102. https://doi.org/10.1063/1.4967525

MLA

Vancouver

Bouhafs C, Stanishev V, Zakharov AA, Hofmann T, Kühne P, Iakimov T et al. Decoupling and ordering of multilayer graphene on C-face 3C-SiC(111). Applied Physics Letters. 2016 nov 14;109(20). 203102. https://doi.org/10.1063/1.4967525

Author

Bouhafs, C. ; Stanishev, V. ; Zakharov, A. A. ; Hofmann, T. ; Kühne, P. ; Iakimov, T. ; Yakimova, R. ; Schubert, M. ; Darakchieva, V. / Decoupling and ordering of multilayer graphene on C-face 3C-SiC(111). I: Applied Physics Letters. 2016 ; Vol. 109, Nr. 20.

RIS

TY - JOUR

T1 - Decoupling and ordering of multilayer graphene on C-face 3C-SiC(111)

AU - Bouhafs, C.

AU - Stanishev, V.

AU - Zakharov, A. A.

AU - Hofmann, T.

AU - Kühne, P.

AU - Iakimov, T.

AU - Yakimova, R.

AU - Schubert, M.

AU - Darakchieva, V.

PY - 2016/11/14

Y1 - 2016/11/14

N2 - We show experimentally that few layer graphene (FLG) grown on the carbon terminated surface (C-face) of 3C-SiC(111) is composed of decoupled graphene sheets. Landau level spectroscopy on FLG graphene is performed using the infrared optical Hall effect. We find that Landau level transitions in the FLG exhibit polarization preserving selection rules and the transition energies obey a square-root dependence on the magnetic field strength. These results show that FLG on C-face 3C-SiC(111) behave effectively as a single layer graphene with linearly dispersing bands (Dirac cones) at the graphene K point. We estimate from the Landau level spectroscopy an upper limit of the Fermi energy of about 60 meV in the FLG, which corresponds to a carrier density below 2.5 × 1011cm-2. Low-energy electron diffraction μ-LEED) reveals the presence of azimuthally rotated graphene domains with a typical size of ≤200 nm. μ-LEED mapping suggests that the azimuth rotation occurs between adjacent domains within the same sheet rather than vertically in the stack.

AB - We show experimentally that few layer graphene (FLG) grown on the carbon terminated surface (C-face) of 3C-SiC(111) is composed of decoupled graphene sheets. Landau level spectroscopy on FLG graphene is performed using the infrared optical Hall effect. We find that Landau level transitions in the FLG exhibit polarization preserving selection rules and the transition energies obey a square-root dependence on the magnetic field strength. These results show that FLG on C-face 3C-SiC(111) behave effectively as a single layer graphene with linearly dispersing bands (Dirac cones) at the graphene K point. We estimate from the Landau level spectroscopy an upper limit of the Fermi energy of about 60 meV in the FLG, which corresponds to a carrier density below 2.5 × 1011cm-2. Low-energy electron diffraction μ-LEED) reveals the presence of azimuthally rotated graphene domains with a typical size of ≤200 nm. μ-LEED mapping suggests that the azimuth rotation occurs between adjacent domains within the same sheet rather than vertically in the stack.

UR - http://www.scopus.com/inward/record.url?scp=84995739786&partnerID=8YFLogxK

U2 - 10.1063/1.4967525

DO - 10.1063/1.4967525

M3 - Article

AN - SCOPUS:84995739786

VL - 109

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 20

M1 - 203102

ER -