Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Emergence of a Metal-Insulator Transition and High Temperature Charge
  Density Waves in VSe2 at the Monolayer Limit   Emergent phenomena driven by electronic reconstructions in oxide
heterostructures have been intensively discussed. However, the role of these
phenomena in shaping the electronic properties in van der Waals
heterointerfaces has hitherto not been established. By reducing the material
thickness and forming a heterointerface, we find two types of charge-ordering
transitions in monolayer VSe2 on graphene substrates. Angle-resolved
photoemission spectroscopy (ARPES) uncovers that Fermi-surface nesting becomes
perfect in ML VSe2. Renormalization group analysis confirms that imperfect
nesting in three dimensions universally flows into perfect nesting in two
dimensions. As a result, the charge density wave transition temperature is
dramatically enhanced to a value of 350 K compared to the 105 K in bulk VSe2.
More interestingly, ARPES and scanning tunneling microscopy measurements
confirm an unexpected metal-insulator transition at 135 K, driven by lattice
distortions. The heterointerface plays an important role in driving this novel
metal-insulator transition in the family of monolayered transition metal
dichalcogenides.

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The categories of this paper are: math
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
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The categories of this paper are: stat
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
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The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
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The categories of this paper are: cs
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The categories of this paper are: math-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: quant-ph
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The categories of this paper are: physics