Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ferroelectric Capped Magnetization in Multiferroic PZT/LSMO Tunnel
  Junctions   Self-poled ultra-thin ferroelectric PbZr0.52Ti0.48O3 (PZT) (5 and 7 nm) films
have been grown by pulsed laser deposition technique on ferromagnetic
La0.67Sr0.33MnO3 (LSMO) (30 nm) to check the effect of polar capping on
magnetization for ferroelectric tunnel junction (FTJ) devices. PZT/LSMO
heterostructures with thick polar PZT (7 nm) capping show nearly 100%
enhancement in magnetization compared with thin polar PZT (5 nm) films,
probably due to excess hole transfer from the ferroelectric to the
ferromagnetic layers. Core-level X-ray photoelectron spectroscopy studies
revealed the presence of larger Mn 3s exchange splitting and higher Mn3+/Mn4+
ion ratio in the LMSO with 7 nm polar capping.

25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics