Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Identification of main contributions to conductivity of epitaxial InN   Complex effect of different contributions (spontaneously formed In
nanoparticles, near-interface, surface and bulk layers) on electrophysical
properties of InN epitaxial films is studied. Transport parameters of the
surface layer are determined from the Shubnikov-de Haas oscillations measured
in undoped and Mg-doped InN films at magnetic fields up to 63 T. It is shown
that the In nanoparticles, near-interface and bulk layers play the dominant
role in the electrical conductivity of InN, while influence of the surface
layer is pronounced only in the compensated low-mobility InN:Mg films.

24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc