Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Characteristic Lengths of Interlayer Charge-Transfer in Correlated Oxide
  Heterostructures   Using interlayer interaction to control functional heterostructures with
atomic-scale designs has become one of the most effective interface-engineering
strategies nowadays. Here, we demonstrate the effect of a crystalline LaFeO3
buffer layer on amorphous and crystalline LaAlO3/SrTiO3 heterostructures. The
LaFeO3 buffer layer acts as an energetically favored electron acceptor in both
LaAlO3/SrTiO3 systems, resulting in modulation of interfacial carrier density
and hence metal-to-insulator transition. For amorphous and crystalline
LaAlO3/SrTiO3 heterostructures, the metal-to-insulator transition is found when
the LaFeO3 layer thickness crosses 3 and 6 unit cells, respectively. Such
different critical LaFeO3 thicknesses are explained in terms of distinct
characteristic lengths of the redox-reaction-mediated and
polar-catastrophe-dominated charge transfer, controlled by the interfacial
atomic contact and Thomas-Fermi screening effect, respectively. Our results not
only shed light on the complex interlayer charge transfer across oxide
heterostructures but also provides a new route to precisely tailor the
charge-transfer process at a functional interface.

14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex