Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An electronic model for self-assembled hybrid organic/perovskite
  semiconductors: reverse band edge electronic states ordering and spin-orbit
  coupling   Based on density functional theory, the electronic and optical properties of
hybrid organic/perovskite crystals are thoroughly investigated. We consider the
mono-crystalline 4FPEPI as material model and demonstrate the optical process
is governed by three active Bloch states at the {\Gamma} point of the reduced
Brillouin zone with a reverse ordering compared to tetrahedrally bonded
semiconductors. Giant spin-orbit coupling effects and optical activities are
subsequently inferred from symmetry analysis.

9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys