Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electronic reconstruction at the isopolar LaTiO3/LaFeO3 interface: An
  x-ray photoemission and density functional theory study   We report the formation of a non-magnetic band insulator at the isopolar
interface between the antiferromagnetic Mott-Hubbard insulator LaTiO3 and the
antiferromagnetic charge transfer insulator LaFeO3. By density functional
theory calculations, we find that the formation of this interface state is
driven by the combination of O band alignment and crystal field splitting
energy of the t2g and eg bands. As a result of these two driving forces, the Fe
3d bands rearrange and electrons are transferred from Ti to Fe. This picture is
supported by x-ray photoelectron spectroscopy, which confirms the rearrangement
of the Fe 3d bands and reveals an unprecedented charge transfer up to 1.2+/-0.2
e-/interface unit cell in our LaTiO3/LaFeO3 heterostructures.

32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs