Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electronic Polaron in Strongly-correlated Transition Metal Halides   Formation of polarons has been customarily attributed to electron-phonon
coupling in solids. Herein, we present a theory of electronic polarons, in
which spontaneous carrier localization occurs solely because of
electron-electron interaction. Through a combination of first-principles
calculation and scanning tunneling spectroscopy we demonstrate the existence of
electronic polarons in strongly correlated two-dimensional transition metal
halides, such a CrI2. While lattice relaxation occurs at the polaron, we stress
that this is a secondary effect in response to spontaneous carrier
localization. This alters our fundamental understanding of small polarons and
indicates that electron-phonon coupling may not be a prerequisite for their
formation.

20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph