Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universal renormalization group flow toward perfect Fermi-surface
  nesting driven by enhanced electron-electron correlations in monolayer
  vanadium diselenide   In the present study we examine nature of a charge ordering transition in
monolayer vanadium diselenide ($VSe_{2}$), which would be distinguished from
that of $VSe_{2}$ bulk samples, driven by more enhanced electron-electron
correlations. Recently, angle resolved photoemission spectroscopy measurements
uncovered that the Fermi surface nesting becomes perfect, where the dynamics of
hot electrons is dispersionless along the orthogonal direction of the nesting
wave-vector. In addition, scanning tunneling microscopy measurements confirmed
that the resulting CDW state shows essentially the same modulation pattern as
the three dimensional system of $VSe_{2}$. Here, we perform the renormalization
group analysis based on an effective field theory in terms of critical CDW
fluctuations and hot electrons of imperfect Fermi-surface nesting. As a result,
we reveal that the imperfect nesting universally flows into perfect nesting in
two dimensions, where the Fermi velocity along the orthogonal direction of the
nesting vector vanishes generically. We argue that this electronic
reconstruction is responsible for the observation that the CDW transition
temperature is much more enhanced to be around $T_{c} > 300$ $K$ than that of
the bulk sample.

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The categories of this paper are: hep-ex
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The categories of this paper are: comp-gas
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph