Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetic domain-wall dynamics in wide permalloy strips   Domain walls in soft permalloy strips may exhibit various equilibrium
micromagnetic structures depending on the width and thickness of the strip,
ranging from the well-known transverse and vortex walls in narrow and thin
strips to double and triple vortex walls recently reported in wider strips [V.
Est\'evez and L. Laurson, Phys. Rev. B {\bf 91}, 054407 (2015)]. Here we
analyze the field driven dynamics of such domain walls in permalloy strips of
widths from 240 nm up to 6 $\mu$m, using the known equilibrium domain wall
structures as initial configurations. Our micromagnetic simulations show that
the domain wall dynamics in wide strips is very complex, and depends strongly
on the geometry of the system, as well as on the magnitude of the driving
field. We discuss in detail the rich variety of the dynamical behaviors found,
including dynamic transitions between different domain wall structures,
periodic dynamics of a vortex core close to the strip edge, transitions towards
simpler domain wall structures of the multi-vortex domain walls controlled by
vortex polarity, and the fact that for some combinations of the strip geometry
and the driving field the system cannot support a compact domain wall.

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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: ao-sci
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The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: comp-gas
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: physics
1
The categories of this paper are: cs
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The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-th