Tailoring the electronic structure of epitaxial graphene on SiC (S1)

Project description

This project aims towards the tailored modification of the electronic structure of the graphene/SiC(0001) interface by means of proximity coupling. By intercalation, graphene will be driven into extreme doping regimes to induce correlated states such as charge- or spin-density waves or superconductivity. By fine-tuning of the carrier density, e.g., by adsorption we plan to investigate different ordered ground states. Tailored interface layers of heavy elements and defined alloy mixtures will induce spin-orbit coupling effects and exotic collective phenomena. The functionalized graphene and the interface layers will be investigated by high resolution and microscopic electron spectroscopy techniques.


Composition of the project group


Project-related publications

Periodic nanoarray of graphene pn-junctions on silicon carbide obtained by hydrogen intercalation

H. Karkachian, P. Rosenzweig, T. T. N. Nguyen, B. Matta, A. A. Zakarov, R. Yakimova, T. Balasubramanian, Z. Mamiyev, C. Tegenkamp, C. M. Polley, U. Starke, Adv. Funct. Mater. 2109839, 20 (2022)

DOI-Link

Semiconductor to metal transition in two-dimensional gold and its van der Waals heterostack with graphene

S. Forti, S. Link, A. Stöhr, Y. Niu, A. A. Zakharov, C. Coletti, U. Starke, Nat. Commun. 11, 2236 (2020)

DOI-Link

Large-area synthesis of a semiconducting silver monolayer via intercalation of epitaxial graphene

P. Rosenzweig, U. Starke, Phys. Rev. B 101, 201407(R) (2020)

DOI-Link

Overdoping graphene beyond the van Hove Singularity

P. Rosenzweig, H. Karakachian, D. Marchenko, K. Küster, U. Starke, Phys. Rev. Lett. 125, 176403 (2020)

DOI-Link

Onedimensional confinement and width-dependent bandgap formation in epitaxial graphene nanoribbons

H. Karakachian, T. T. Nhung Nyuyen, J. Aprojanz, A. A. Zakharov, R. Yakimova, P. Rosenzweig, C. M. Polley, T. Balasubramanian, C. Tegenkamp, S. R. Power, U. Starke, Nat. Commun. 11, 6380 (2020)

DOI-Link

Introducing strong correlation effects into graphene by gadolinium intercalation

S. Link, S. Forti, A. Stohr, K. Küster, M. Rosner, D. Hirschmeier, C. Chen, J. Avila, M. C. Asensio, A. A. Zakharov, T. O. Wehling, A. I. Lichtenstein, M. I. Katsnelson, U. Starke, Phys. Rev. B 100, 121407(R) (2019)

DOI-Link

Ballistic bipolar junctions in chemically gated graphene ribbons

J. Baringhaus, A. Stohr, S. Forti, U. Starke, C. Tegenkamp, Sci. Rep. 5, 9955 (2015)

DOI-Link

Evidence for superconductivity in Li-decorated monolayer graphene

B. M. Ludbrook, G. Levy, P. Nigge, M. Zonno, M. Schneider, D. J. Dvorak, C. N. Veenstra, S. Zhdanovich, D. Wong, P. Dosanjh, C. Straßer, A. Stöhr, S. Forti, C. R. Ast, U. Starke, A. Damascelli, Proc. Nat. Acad. Soc. 112, 11795 (2015)

DOI-Link

Ambipolar doping in quasi-free epitaxial graphene on SiC(0001) controlled by Ge intercalation

K. V. Emtsev, A. A. Zakharov, C. Coletti, S. Forti, U. Starke, Phys. Rev. B 84, 125423 (2011)

DOI-Link

Charge neutrality and band-gap tuning of epitaxial graphene on SiC by molecular doping

C. Coletti, C. Riedl, D. S. Lee, B. Krauss, L. Patthey, K. v. Klitzing, J. H. Smet, U. Starke, Phys. Rev. B 81, 235401 (2010)

DOI-Link

Quasi-free standing epitaxial graphene layers on SiC by hydrogen intercalation

C. Riedl, C. Coletti, T. Iwasaki, A. A. Zakharov, U. Starke, Phys. Rev. Lett. 103, 246804 (2009)

DOI-Link

Kathrin Küster
MPI Stuttgart
+49 711 689-1341
k.kuester@fkf.mpg.de

https://www.fkf.mpg.de/person/45016/5859183

Ulrich Starke
MPI Stuttgart
+49 711 689-1345
u.starke@fkf.mpg.de

https://www.fkf.mpg.de/person/45016/5859183

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