Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strong interfacial exchange field in a heavy metal/ferromagnetic
  insulator system determined by spin Hall magnetoresistance   Spin-dependent transport at heavy metal/magnetic insulator interfaces is at
the origin of many phenomena at the forefront of spintronics research. A proper
quantification of the different interfacial spin conductances is crucial for
many applications. Here, we report the first measurement of the spin Hall
magnetoresistance (SMR) of Pt on a purely ferromagnetic insulator (EuS). We
perform SMR measurements in a wide range of temperatures and fit the results by
using a microscopic model. From this fitting procedure we obtain the
temperature dependence of the spin conductances ($G_s$, $G_r$ and $G_i$),
disentangling the contribution of field-like torque ($G_i$), damping-like
torque ($G_r$), and spin-flip scattering ($G_s$). An interfacial exchange field
of the order of 1 meV acting upon the conduction electrons of Pt can be
estimated from $G_i$, which is at least three times larger than $G_r$ below the
Curie temperature. Our work provides an easy method to quantify this
interfacial spin-splitting field, which play a key role in emerging fields such
as superconducting spintronics and caloritronics, and topological quantum
computation.

17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol