Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coercivity and random interfacial exchange coupling in CoPt/Co films   Hard-soft bilayers are analogous to prototype exchange-biased ferromagnetic
-antiferromagnetic systems as the minor loop of the soft layer is biased by the
hard and furthermore they offer bias layer tunability. In sputtered CoPt/Co
hard-soft bilayers we demonstrate that the exchange bias field shows a linear
dependence on the hard layer magnetization, while the coercivity shows a
quadratic dependence. Analysis of the minor hysteresis loop features supported
by Monte-Carlo simulations provide clear evidence that the coercivity of the
soft layer is mainly determined by the tunable randomness of the domain state
of the hard layer.

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The categories of this paper are: physics
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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: astro-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: eess
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The categories of this paper are: math-ph
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The categories of this paper are: stat
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The categories of this paper are: math
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The categories of this paper are: hep-ph
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The categories of this paper are: nlin
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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-th