Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ballistic transport in graphene antidot lattices   Graphene samples can have a very high carrier mobility if influences from the
substrate and the environment are minimized. Embedding a graphene sheet into a
heterostructure with hexagonal boron nitride (hBN) on both sides was shown to
be a particularly efficient way of achieving a high bulk mobility.
Nanopatterning graphene can add extra damage and drastically reduce sample
mobility by edge disorder. Preparing etched graphene nanostructures on top of
an hBN substrate instead of SiO2 is no remedy, as transport characteristics are
still dominated by edge roughness. Here we show that etching fully encapsulated
graphene on the nanoscale is more gentle and the high mobility can be
preserved. To this end, we prepared graphene antidot lattices where we observe
magnetotransport features stemming from ballistic transport. Due to the short
lattice period in our samples we can also explore the boundary between the
classical and the quantum transport regime.

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The categories of this paper are: nucl-ex
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The categories of this paper are: econ
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
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The categories of this paper are: math
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
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The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: hep-lat