Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Controlling transport properties of graphene nanoribbons by
  codoping-induced edge distortions   One notable manifestation of the peculiar edge-localized states in zigzag
graphene nanoribbons (zGNRs) is the p-type (n-type) characteristics of nitrogen
(boron) edge-doped GNRs, and such behavior was so far considered to be
exclusive for zGNRs. Carrying out first-principles electronic structure and
quantum transport calculations, we herein show that the donor-acceptor
transition behavior can also arise in the B/N edge-doped armchair GNRs (aGNRs)
by introducing a bipolar P codopant atom into the energetically most favorable
nearest neighbor edge sites. The n-type (p-type) transport properties of B,P
(N,P) co-doped aGNRs are also shown to be superior to those of reference single
N (B) doped aGNRs in that the valence (conduction) band edge conductance
spectra are better preserved. Disentangling the chemical doping and structural
distortion effects, we will demonstrate that the latter plays an important role
in determining the transport type and explains the donor-acceptor transition
feature as well as the bipolar character of P-doped aGNRs. We thus propose the
systematic modification of GNR edge atomic structures via co-doping as a novel
approach to control charge transport characteristics of aGNRs.

1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
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The categories of this paper are: math
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
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The categories of this paper are: hep-th
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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph