Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Misfit layer compounds: a platform for heavily-doped two-dimensional
  transition metal dichalcogenides   Transition metal dichalcogenides (TMDs) display a rich variety of
instabilities such as spin and charge orders, Ising superconductivity and
topological properties. Their physical properties can be controlled by doping
in electric double-layer field-effect transistors (FET). However, for the case
of single layer NbSe$_2$, FET doping is limited to $\approx 1\times 10^{14}$
cm$^{-2}$, while a somewhat larger charge injection can be obtained via
deposition of K atoms. Here, by performing ARPES, STM, quasiparticle
interference measurements, and first principles calculations we show that a
misfit compound formed by sandwiching NbSe$_2$ and LaSe layers behaves as a
NbSe$_2$ single layer with a rigid doping of $0.55-0.6$ electrons per Nb atom
or $\approx 6\times 10^{14}$ cm$^{-2}$. Due to this huge doping, the $3\times3$
charge density wave is replaced by a $2\times2$ order with very short coherence
length. As a tremendous number of different misfit compounds can be obtained by
sandwiching TMDs layers with rock salt or other layers, our work paves the way
to the exploration of heavily doped 2D TMDs over an unprecedented wide range of
doping.

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The categories of this paper are: hep-th
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The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
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The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
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The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: math
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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
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The categories of this paper are: nucl-ex