Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin Currents injected electrically and thermally from highly spin
  polarized Co$_2$MnSi   We demonstrate the injection and detection of electrically and thermally
generated spin currents probed in Co$_2$MnSi/Cu lateral spin valves. Devices
with different electrode separations are patterned to measure the non-local
signal as a function of the electrode spacing and we determine a relatively
high effective spin polarization $\alpha$ of Co$_2$MnSi to be 0.63 and the spin
diffusion length of Cu to be 500 nm at room temperature. The electrically
generated non-local signal is measured as a function of temperature and a
maximum signal is observed for a temperature of 80 K. The thermally generated
non-local signal is measured as a function of current density and temperature
in a second harmonic measurement detection scheme. We find different
temperature dependences for the electrically and thermally generated non-local
signals, which allows us to conclude that the temperature dependence of the
signals is not just dominated by the transport in the Cu wire, but that there
is a crucial contribution from the different generation mechanisms, which has
been largely disregarded to date.

5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
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The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom