Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wannier-based definition of layer polarizations in perovskite
  superlattices   In insulators, the method of Marzari and Vanderbilt [Phys. Rev. B {\bf 56},
12847 (1997)] can be used to generate maximally localized Wannier functions
whose centers are related to the electronic polarization. In the case of
layered insulators, this approach can be adapted to provide a natural
definition of the local polarization associated with each layer, based on the
locations of the nuclear charges and one-dimensional Wannier centers comprising
each layer. Here, we use this approach to compute and analyze layer
polarizations of ferroelectric perovskite superlattices, including changes in
layer polarizations induced by sublattice displacements (i.e., layer-decomposed
Born effective charges) and local symmetry breaking at the interfaces. The
method provides a powerful tool for analyzing the polarization-related
properties of complex layered oxide systems.

15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph