Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Raman Response and Transport Properties of One-Dimensional van der Waals
  Tellurium Nanowires   Tellurium can form nanowires of helical atomic chains. Given their unique
one-dimensional van der Waals structure, these nanowires are expected to show
remarkably different physical and electronic properties than bulk tellurium.
Here we show that few-chain and single-chain van der Waals tellurium nanowires
can be isolated using carbon nanotube and boron nitride nanotube encapsulation.
With the approach, the number of atomic chains can be controlled by the inner
diameter of the nanotube. The Raman response of the structures suggests that
the interaction between a single-atomic tellurium chain and a carbon nanotube
is weak, and that the inter-chain interaction becomes stronger as the number of
chains increases. Compared with bare tellurium nanowires on SiO2, nanowires
encapsulated in boron nitride nanotubes exhibit a dramatically enhanced
current-carrying capacity, with a current density of 1.5*10^8 A cm-2, which
exceeds that of most semiconducting nanowires. We also use our tellurium
nanowires encapsulated in boron nitride nanotubes to create field-effect
transistors that have a diameter of only 2 nm.

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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
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The categories of this paper are: physics
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The categories of this paper are: hep-th
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The categories of this paper are: q-alg
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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: stat
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The categories of this paper are: patt-sol