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Christoph Tegenkamp

Institut für Festkörperphysik

Leibniz Universität Hannover

Phone +49 (0)511 762 2542

Fax +49 (0)511 762 4877

Email: tegenkamp@fkp.uni-hannover.de

Web: www.fkp.uni-hannover.de/atmos


Growth of graphene and nano-structuring, functionalization of semiconducting surfaces by molecules and metallic films, electronic correlated materials. The surface channels are characterized via electronic transport by systematic variation of magnetic fields (so far only in a macroscopic transport setup), temperature, coverage, impurity concentration and details of the contact geometries (4-tip STM/SEM). Measurements are complemented by ARPES, STM, STS and LEED.

Relevant Publications

C. Tegenkamp, et.al. Fermi nesting between atomic wires with strong spin-orbit coupling, PRL 109, 266401 (2012).

J. Baringhaus, et.al. Edge-states in graphene nanoribbons: a combined spectroscopy and transport study, JPCM Matter 25, 392001 (2013).

L. Barreto, et.al. Surface-dominated Transport on a Bulk Topological Insulator, ACS Nano Letters 14, 3755 (2014).

J. Baringhaus, et.al. Bipolar gating of epitaxial graphene by intercalation of Ge, APL 104, 261602 (2014). J. Baringhaus, et.al. Exceptional ballistic transport in epitaxial graphene nanoribbons, Nature, 506, 349 (2014).