Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: DC transport properties and microwave absorption in bulk ceramic sample
  and film of La_{0.5}Sr_{0.5}CoO_{3-\delta}: magnetic inhomogeneity effects   The DC transport properties and microwave absorption (at 41 GHz) are measured
in a bulk ceramic sample and a film (220 nm thick) of
La$_{0.5}$Sr$_{0.5}$CoO$_{3-\delta}$. The samples are polycrystalline. The
microwave conductivity, which is related mainly to the intragrain conductivity,
increases by the order of the magnitude at the transition to the ferromagnetic
state. The increase is far greater than that of found in the known DC
measurements in doped cobaltates of the best crystal perfection. The found
microwave effect is attributed to inherent magnetically inhomogeneous state of
the doped cobaltates. Relaying on the results obtained it can be suggested that
rather low magnetoresistance in the doped cobaltates as compared with that of
the manganites is attributable to their more inhomogenenous magnetic state.

8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an