Sandner, Andreas and Preis, Tobias and Schell, Christian and Giudici, Paula and Watanabe, Kenji and Taniguchi, Takashi and Weiss, Dieter and Eroms, Jonathan (2015) Ballistic Transport in Graphene Antidot Lattices. NANO LETTERS, 15 (12). pp. 8402-8406. ISSN 1530-6984, 1530-6992
Full text not available from this repository. (Request a copy)Abstract
The bulk carrier mobility in graphene was shown to be enhanced in graphene boron nitride heterostructures. However, nanopatterning graphene can add extra damage and drastically degrade the intrinsic properties by edge disorder. Here we show that graphene embedded into a heterostructure with hexagonal boron nitride (hBN) on both sides is protected during a nanopatterning step. In this way, we can prepare graphene-based antidot lattices where the high mobility is preserved. We report magnetotransport experiments in those antidot lattices with lattice periods down to SO nm. We observe pronounced commensurability features stemming from ballistic orbits around one or several antidots. Due to the short lattice period in our samples, we can also explore the boundary between the classical and the quantum transport regime, as the Fermi wavelength of the electrons approaches the smallest length scale of the artificial potential.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CARBON NANOTUBES; SUPERLATTICES; NANORIBBONS; ARRAYS; FABRICATION; PRESSURE; PERIODS; ORBITS; Graphene; boron nitride; ballistic transport; nanopatterning antidots |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 03 May 2019 11:54 |
| Last Modified: | 03 May 2019 11:54 |
| URI: | https://pred.uni-regensburg.de/id/eprint/4381 |
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