Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Origins of the unidirectional spin Hall magnetoresistance in metallic
  bilayers   Recent studies evidence the emergence of asymmetric electron transport in
layered conductors owing to the interplay between electrical conductivity,
magnetization, and the spin Hall or Rashba- Edelstein effects. Here, we
investigate the unidirectional magnetoresistance (UMR) caused by the
current-induced spin accumulation in Co/Pt and CoCr/Pt bilayers. We identify
three competing mechanisms underpinning the resistance asymmetry, namely
interface and bulk spin-dependent electron scattering and electron-magnon
scattering. Our measurements provide a consistent description of the current,
magnetic field, and temperature dependence of the UMR and show that both
positive and negative UMR can be obtained by tuning the interface and bulk
spin-dependent scattering terms relative to the magnon population.

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The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
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The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org