Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Synthetic Antiferromagnetic Spintronics: Part of a collection of reviews
  on antiferromagnetic spintronics   Spintronic and nanomagnetic devices often derive their functionality from
layers of different materials and the interfaces between them. This is
especially true for synthetic antiferromagnets - two or more ferromagnetic
layers that are separated by metallic spacers or tunnel barriers and which have
antiparallel magnetizations. Here, we discuss the new opportunities that arise
from synthetic antiferromagnets, as compared to crystal antiferromagnets or
ferromagnets.

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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: econ
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The categories of this paper are: acc-phys
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The categories of this paper are: atom-ph
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The categories of this paper are: physics
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The categories of this paper are: quant-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: cs
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The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: plasm-ph