Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Perpendicular magnetization reversal in Pt/[Co/Ni]$_3$/Al multilayers
  via the Spin Hall Effect of Pt   We experimentally investigate the current-induced magnetization reversal in
Pt/[Co/Ni]$_3$/Al multilayers combining the anomalous Hall effect and
magneto-optical Kerr effect techniques in crossbar geometry. The magnetization
reversal occurs through nucleation and propagation of a domain of opposite
polarity for a current density of the order of 0.3 TA/m$^2$. In these
experiments we demonstrate a full control of each stage: i)the {\O}rsted field
controls the domain nucleation and ii) domain-wall propagation occurs by spin
torque from the Pt spin Hall effect. This scenario requires an in-plane
magnetic field to tune the domain wall center orientation along the current for
efficient domain wall propagation. Indeed, as nucleated, domain walls are
chiral and N\'eel like due to the interfacial Dzyaloshinskii-Moriya
interaction.

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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
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The categories of this paper are: solv-int
9
The categories of this paper are: nlin
2
The categories of this paper are: math
21
The categories of this paper are: adap-org