Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetic domain dynamics in an insulating quantum ferromagnet   The statistics and form of avalanches in a driven system reveal the nature of
the underlying energy landscape and dynamics. In conventional metallic
ferromagnets, eddy-current back action can dominate the dynamics. Here, we
study Barkhausen noise in Li(Ho,Y)F4, an insulating Ising ferromagnet that
cannot sustain eddy currents. For large avalanches at temperatures approaching
the Curie point, we find a symmetric response free of drag effects. In the low
temperature limit, drag effects contribute to the dynamics, which we link to
enhanced pinning from local random fields that are enabled by the microscopic
dipole-coupled Hamiltonian (the Ising model in transverse field).

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The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
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The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg