Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Collective magnetic response of inhomogeneous nanoisland FeNi films
  around the percolation transition   By using superconducting quantum interference device (SQUID) magnetometry we
investigated anisotropic high-field (H < 7 T) low-temperature (10 K)
magnetization response of inhomogeneous nanoisland FeNi films grown by rf
sputtering deposition on Sitall (TiO2) glass substrates. In the grown FeNi
films, the FeNi layer nominal thickness varied from 0.6 to 2.5 nm, across the
percolation transition at the d_c=1.8 nm. We discovered that, beyond
conventional spin-magnetism of Fe21Ni79 permalloy, the extracted out-of-plane
magnetization response of the nanoisland FeNi films is not saturated in the
range of investigated magnetic fields and exhibits paramagnetic-like behavior.
We found that the anomalous out-of-plane magnetization response exhibits an
escalating slope with increase in the nominal film thickness from 0.6 to 1.1
nm, however, it decreases with further increase in the film thickness, and then
practically vanishes on approaching the FeNi film percolation threshold. At the
same time, the in-plane response demonstrates saturation behavior above 1.5-2
T, competing with anomalously large diamagnetic-like response, which becomes
pronounced at high magnetic fields. It is possible that the supported-metal
interaction leads to the creation of a thin charge-transfer (CT) layer and a
Schottky barrier at the FeNi film/Sitall (TiO2) interface. Then, in the system
with nanoscale circular domains, the observed anomalous paramagnetic-like
magnetization response can be associated with a large orbital moment of the
localized electrons. The observed magnetization response is determined by the
interplay between the paramagnetic- and diamagnetic-like contributions.

2
The categories of this paper are: math
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ