Dresden 2017 – scientific programme

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DS: Fachverband Dünne Schichten

DS 39: Thin Film Applications

DS 39.1: Talk

Thursday, March 23, 2017, 09:30–09:45, CHE 91

Transport properties of nanostructured graphene — •Victor Aristov^1,2,3, Olga Molodtsova^1,4, Sergey Babenkov¹, Han-Chun Wu⁵, Alexander Chaika², Dmitry Marchenko⁶, Andrei Varykhalov⁶, Alexei Zakharov⁷, Yuran Niu⁷, Alexei Preobrajenski⁷, Denis Vyalikh⁸, Barry Murphy⁹, Sergey Krasnikov⁹, and Igor Shvets⁹ — ¹DESY, Hamburg, Germany — ²ISSP RAS, Chernogolovka, Russia — ³TU Bergakademie, Freiberg, Germany — ⁴ITMO, Saint Petersburg, Russia — ⁵BIT, Beijing, China — ⁶BESSY, Berlin, Germany — ⁷Max-lab, Lund, Sweden — ⁸TU Dresden, Germany — ⁹Trinity College, Dublin, Ireland

Trilayer graphene reveals unique electronic properties appealing for fundamental science and electronic technologies. We propose a simple method to open a charge transport gap and achieve a high on-off current ratio in Bernal-stacked trilayer graphene synthesized on vicinal SiC(001). Low-temperature measurements show that self-aligned, periodic nanodomain boundaries induce a huge charge transport gap of more than 1.3 eV at 10 K and 0.4 eV at 100 K. Our studies indicate the feasibility of creating electronic nanostructures using graphene on cubic-SiC/Si wafers.This work was supported by the RAS, RFBR grants No 17-02-01139 and No 17-02-01291.