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
- Ulrich Starke, project leader
- Kathrin Küster, project leader
- Bharti Matta
- Sawani Datta
- Vibha Reddy
- Philipp Rosenzweig
Project-related publications
Domain Boundary Formation Within an Intercalated Pb Monolayer Featuring Charge-Neutral Epitaxial Graphene
P. Schädlich, C. Ghosal, M. Stettner, B. Matta, S. Wolff, F. Schölzel, P. Richter, M. Hutter, A. Haags, S. Wenzel, Z. Mamiyev, J. Koch, S. Soubatch, P. Rosenzweig, C. Polley, F. S. Tautz, C. Kumpf, K. Küster, U. Starke, T. Seyller, F. C. Bocquet, C. Tegenkamp, Adv. Mat. Interfaces 10, 27 (2023)
Quantum Confinement in Epitaxial Armchair Graphene Nanoribbons on SiC Sidewalls
T.T. Nhung Nguyen, S. R. Power, H. Karakachian, U. Starke, C. Tegenkamp, ACS Nano 17, 20345-20352 (2023)
Observation of ultrafast interfacial Meitner-Auger energy transfer in a Van der Waals heterostructure
S. Dong , S. Beaulieu, M. Selig, P. Rosenzweig, D. Christiansen, T. Pincelli, M. Dendzik, J.D. Ziegler, J. Maklar, R.P. Xian, A. Neef, A. Mohammed, A. Schulz, M. Stadler, M. Jetter, P. Michler, T. Taniguchi, K. Watanabe, H. Takagi, U. Starke, A. Chernikov, M. Wolf, H. Nakamura, A. Knorr, L. Rettig, R. Ernstorfer, Nat Commun 14, 5057 (2023)
Periodic nanoarray of graphene pn-junctions on silicon carbide obtained by hydrogen intercalation
H. Karkachian, P. Rosenzweig, T.T. Nhung 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)
Momentum microscopy of Pb-intercalated graphene on SiC: Charge neutrality and electronic structure of interfacial Pb
B. Matta, P. Rosenzweig, O. Bolkenbaas, K. Küster, U. Starke, Phys. Rev. Research 4, 023250 (2022)
Surface charge-transfer doping a quantum-confined silver monolayer beneath epitaxial graphene
P. Rosenzweig, H. Karakachian, D. Marchenko, U. Starke, Phys. Rev. B 105 105, 235428 (2022)
Ubiquitous defect-induced density wave instability in monolayer graphene
A. C. Qu, P. Nigge, S. Link, G. Levy, M. Michiardi, P. L. Spandar, T. Matthe, M. Schneider, S. Zhdanovich, U. Starke, C. Gutierrez, A. Damascelli, Sci. Adv. 8, eabm5180 (2022)
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)
Large-area synthesis of a semiconducting silver monolayer via intercalation of epitaxial graphene
P. Rosenzweig, U. Starke, Phys. Rev. B 101, 201407(R) (2020)
Overdoping graphene beyond the van Hove Singularity
P. Rosenzweig, H. Karakachian, D. Marchenko, K. Küster, U. Starke, Phys. Rev. Lett. 125, 176403 (2020)
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)
Hydrogen-Intercalated Graphene on SiC as Platform for Hybrid Superconductor Devices
F. Paschke, T. Birk, S. Forti, U. Starke, M. Fonin, Adv. Quantum Technol. 3, 2000082 (2020)
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)
Ballistic bipolar junctions in chemically gated graphene ribbons
J. Baringhaus, A. Stohr, S. Forti, U. Starke, C. Tegenkamp, Sci. Rep. 5, 9955 (2015)
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)
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)
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)
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)
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
