Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two dimensional semiconductors with possible high room temperature
  mobility   We calculated the longitudinal acoustic phonon limited electron mobility of
14 two dimensional semiconductors with composition of MX$_2$, where M (= Mo, W,
Sn, Hf, Zr and Pt) is the transition metal, and X is S, Se and Te. We treated
the scattering matrix by deformation potential approximation. We found that out
of the 14 compounds, MoTe$_2$, HfSe$_2$ and HfTe$_2$, are promising regarding
to the possible high mobility and finite band gap. The phonon limited mobility
can be above 2500 cm$^2$V$^{-1}$s$^{-1}$ at room temperature.

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The categories of this paper are: plasm-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: astro-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-alg
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
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The categories of this paper are: funct-an
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The categories of this paper are: comp-gas
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The categories of this paper are: math-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: supr-con