Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gate-Defined Quantum Confinement in InSe-based van der Waals
  Heterostructures   Indium selenide, a post-transition metal chalcogenide, is a novel
two-dimensional (2D) semiconductor with interesting electronic properties. Its
tunable band gap and high electron mobility have already attracted considerable
research interest. Here we demonstrate strong quantum confinement and
manipulation of single electrons in devices made from few-layer crystals of
InSe using electrostatic gating. We report on gate-controlled quantum dots in
the Coulomb blockade regime as well as one-dimensional quantization in point
contacts, revealing multiple plateaus. The work represents an important
milestone in the development of quality devices based on 2D materials and makes
InSe a prime candidate for relevant electronic and optoelectronic applications.

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The categories of this paper are: hep-lat
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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg
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The categories of this paper are: hep-th
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
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The categories of this paper are: econ
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The categories of this paper are: solv-int
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg