Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ferromagnetic/DMS hybrid structures: one- and zero-dimensional magnetic
  traps for quasiparticles   We investigated possibility of using local magnetic field originating from
ferromagnetic island deposited on the top of semiconductor quantum well to
produce zero- and one-dimensional traps for quasi-particles with spin. In
particular we considered two shapes of experimentally made magnets -
cylindrical and rectangular. In the case of ferromagnetic micro-disk the trap
can localize spin in three dimensions, contrary to the rectangular micro-magnet
which creates a trap that allows free propagation in one direction. We present
in detail prediction for absorption spectrum around the main absorption edge in
both type of micro-magnets.

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The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
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The categories of this paper are: eess
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The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
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The categories of this paper are: q-fin
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The categories of this paper are: math-ph
16
The categories of this paper are: stat
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
1
The categories of this paper are: cs
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The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
31
The categories of this paper are: ao-sci