Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase Coherent Transport in Graphene Nanoribbons and Graphene Nanoribbon
  Arrays   We have experimentally investigated quantum interference corrections to the
conductivity of graphene nanoribbons at temperatures down to 20 mK studying
both weak localization (WL) and universal conductance fluctuations (UCF). Since
in individual nanoribbons at millikelvin temperatures the UCFs strongly mask
the weak localization feature we employ both gate averaging and ensemble
averaging to suppress the UCFs. This allows us to extract the phase coherence
length from both WL and UCF at all temperatures. Above 1 K, the phase coherence
length is suppressed due to Nyquist scattering whereas at low temperatures we
observe a saturation of the phase coherence length at a few hundred nanometers,
which exceeds the ribbon width, but stays below values typically found in bulk
graphene. To better describe the experiments at elevated temperatures, we
extend the formula for 1D weak localization in graphene, which was derived in
the limit of strong intervalley scattering, to include all elastic scattering
rates.

9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph