Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the structure and electronic properties of Fe$_2$V$_{0.8}$W$_{0.2}$Al
  thin films   A very large thermoelectric figure of merit ZT = 6 at 380 K has recently been
reported in Fe$_2$V$_{0.8}$W$_{0.2}$Al under thin-film form (Hinterleitner et
al., Nature 576 (2019) 85). Under this form, Fe$_2$V$_{0.8}$W$_{0.2}$Al
experimentally crystallizes in a disordered A2 crystal structure, different
from its bulk-form structure (L21). First principles calculations of the
electronic structure performed in A2-Fe$_2$V$_{0.8}$W$_{0.2}$Al supercells
generated by the Special Quasi-random Structure (SQS) method are thus reported
here. These calculations unambiguously indicate that
A2-Fe$_2$V$_{0.8}$W$_{0.2}$Al is a ferromagnetic metal at 0 K, displaying a
small Seebeck coefficient at 400 K (< 30 microV/K). The present results
contradict the scenario of the occurrence of a deep pseudo-gap at the Fermi
level, previously invoked to justify ZT = 6 in Fe$_2$V$_{0.8}$W$_{0.2}$Al thin
films.

23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an