Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High frequency magneto-impedance of double perovskite
  $La_{1.2}Sr_{1.8}Mn_{2}O_{7}$: secondary transitions at high temperatures   Radio frequency magneto-impedance measurements clearly reveal a pronounced
anomaly at 260K besides the main MI transition at 125K in the double perovskite
material $La_{1.2}Sr_{1.8}Mn_{2}O_{7}$. This feature is not seen clearly in
static resistivity and magnetization measurements. We suggest that this anomaly
represents short range magnetic correlations enhanced at radio frequencies,
with the easy axis along the c-axis .

24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn