Dresden 2017 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 75: Poster Session: Transport 1
TT 75.30: Poster
Thursday, March 23, 2017, 15:00–19:00, P2-EG
Spin and Charge Transport in Tailored Carbon Allotropes such as Doped Graphene — •Marie-Luise Braatz1,2, Nils Richter1,2, Hai I. Wang1, Axel Binder3, Mischa Bonn4, and Mathias Kläui1,2 — 1Institute of Physics, Johannes Gutenberg University Mainz, 55099 Mainz, Germany — 2Graduate School of Excellence Materials Science in Mainz (MAINZ), 55128 Mainz, Germany — 3BASF SE, 67056 Ludwigshafen, Germany — 4Max Planck Institute for Polymer Research, 55128 Mainz, Germany
Graphene exhibits extraordinary properties, however, pristine graphene does not show a band gap as needed for many applications. One of the routes to change that is chemical doping [1]. Here we investigate the effect of heteroatom-dopants on the structure and on the electronic and magnetic properties of graphene. The growth conditions are systematically varied to achieve different dopant concentrations. The resulting structural properties are characterized by Raman and electron microscopy while the charge transport is probed by THz spectroscopy. To correlate the structure and charge properties with magnetotransport we determine the magnetoresistance as a function of temperature and field [2].
[1] H. Wang et al., ACS Catal. 2, 781 (2012)
[2] M. Rein et al., ACS Nano 9, 1360 (2015)