Proximity induced superconductivity in graphene on SiC by intercalation (E1)

Project Description

Epitaxial graphene on SiC, which can be grown with high quality on an insulating substrate, provides excellent opportunities for applications as well as fundamental studies of graphene properties. The development of intercalation of different species into the interface between the SiC substrate and epitaxial graphene has greatly expanded these opportunities. In particular it opens an avenue for tailoring graphene properties by proximity coupling. In this project we will use the concept of intercalation to investigate the proximity coupling of epitaxial graphene to correlated states. In particular we will investigate (i) proximity induced superconductivity in graphene implemented by intercalated superconducting layers between SiC and graphene and (ii) the proximity induced interplay between Mott-Hubbard states of intercalated atomic superlattices and the overlying graphene.


Composition of the project group


Publications

Silicon carbide stacking-order-induced doping variation in epitaxial graphene

A. Sinterhauf, G. A. D. Momeni Pakdehi, P. Schadlich, T. T. N. Nguyen, A. A. Zakharov, S. Wundrack, E. Najafidehaghani, F. Speck, K. Pierz, T. Seyller, C. Tegenkamp, H. W. Schumacher, Adv. Funct. Mater. 30, 2004695 (2020)

DOI-Link

Quasi-Freestanding Graphene on SiC(0001) by Ar-Mediated Intercalation of Antimony: A Route Toward Intercalation of High-Vapor-Pressure Elements

S. Wolff, S. Roscher, F. Timmermann, M. V. Daniel, F. Speck, M. Wanke, M. Albrecht, T. Seyller, Ann. Phys. (Berl.) 531, 1900199 (2019)

DOI-Link

Comeback of epitaxial graphene for electronics: large-area growth of bilayer-free graphene on SiC

M. Kruskopf, D. Momeni Pakdehi, K. Pierz, S. Wundrack, R. Stosch, T. Dziomba, M. Gotz, J. Baringhaus, J. Aprojanz, C. Tegenkamp, J. Lidzba, T. Seyller, F. Hohls, F. J. Ahlers, H. W. Schumacher, 2D Mater. 3, 41002 (2016)

DOI-Link

Robust phonon-plasmon coupling in quasi-freestanding graphene on silicon carbide

R. J. Koch, S. Fryska, M. Ostler, M. Endlich, F. Speck, T. Hänsel, J. A. Schaefer, T. Seyller, Phys. Rev. Lett. 116, 106802 (2016)

DOI-Link

Polarization doping of graphene on silicon carbide

S. Mammadov, J. Ristein, R. J. Koch, M. Ostler, C. Raidel, M. Wanke, R. Vasiliauskas, R. Yakimova. T. Seyller, 2D Mater. 1, 035003 (2014)

DOI-Link

Buffer layer free graphene on SiC(0001) via interface oxidation in water vapor

M. Ostler, F. Fromm, R. J. Koch, P. Wehrfritz, F. Speck, H. Vita, S. Böttcher, K. Horn, T. Seyller, J. Carbon 70, 258 (2014)

DOI-Link

Direct growth of quasi-free-standing epitaxial graphene on nonpolar SiC surfaces

M. Ostler, I. Deretzis, S. Mammadov, F. Giannazzo, G. Nicotra, C. Spinella, T. Seyller, A. La Magna, Phys. Rev. B 88, 085408 (2013)

DOI-Link

Origin of doping in quasi-freestanding graphene on silicon carbide

J. Ristein, S. Mammadov, T. Seyller, Phys. Rev. Lett. 108, 246104 (2012)

DOI-Link

Highly p-doped epitaxial graphene obtained by fluorine intercalation

A. L. Walter, K.-J. Jeon, A. Bostwick, F. Speck, M. Ostler, T. Seyller, L. Moreschini, Y. S. Kim, Y. J. Chang, K. Horn, E. Rotenberg, Appl. Phys. Lett. 98, 184102 (2011)

DOI-Link

The quasi-free-standing nature of graphene on H-saturated SiC(0001)

F. Speck, J. Jobst, F. Fromm, M. Ostler, D. Waldmann, M. Hundhausen, H. B. Weber, T. Seyller, Appl. Phys. Lett. 99, 122106 (2011)

DOI-Link

Thomas Seyller
TU Chemnitz
+49 371 531-32898
thomas.seyller@physik.tu-chemnitz.de

https://www.tu-chemnitz.de/physik/TEPH/mitarbeiter.php

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