Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Morphology and magnetic properties of nanocomposite magnetic multilayers
  {[(Co$_{40}$Fe$_{40}$B$_{20}$)$_{34}$(SiO$_2$)$_{66}$]/[C]}$_{47}$   We report on the investigation of morphology, magnetic and conductive
properties of the mutilayered nanostructures
[(Co$_{40}$Fe$_{40}$B$_{20}$)$_{34}$(SiO$_2$)$_{66}$]/[C]$_{47}$ consisting of
the contacting magnetic (Co$_{40}$Fe$_{40}$B$_{20}$)$_{34}$(SiO$_2$)$_{66}$
nanocomposite and amorphous semiconductor carbon C layers. It is shown by
Grazing-Incidence Small-Angle X-ray Scattering method that the ordering and the
size of nanoparticles in the magnetic layers do not change profoundly with
increasing of carbon layer thickness. Meanwhile, the electrical conductance and
the magnetic properties are significantly varied: resistance of the samples
changes by four orders of magnitude and superparamagnetic blocking temperature
changes from 15 K to 7 K with the increment of carbon layer thickness $h_c$
from 0.4 nm to 1.8 nm. We assume that the formation of the homogeneous
semiconductor interlayer leads to modification of the metal-insulator growth
process that drives the changes in the magnetic and conductive properties.

16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th