Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Heat flux sensing by anomalous Nernst effect in Fe-Al thin films on a
  flexible substrate   We performed a numerical analysis of the material parameters required for
realizing a heat flux sensor exploiting the anomalous Nernst effect (ANE). The
results showed the importance of high thermopower of ANE ($S_{\text{ANE}}$) and
small saturation magnetization. This motivated us to investigate the effect of
Al substitution of Fe on ANE and found $S_{\text{ANE}} =$ 3.4 $\mu$V/K in
Fe$_{81}$Al$_{19}$ because of the dominant intrinsic mechanism. Using this
material, we made a prototype ANE-based heat flux sensor on a thin flexible
polyimide sheet and demonstrated accurate sensing with it. This study gives
important information for enhancing sensor sensitivity.

5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an