Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SQUID Metamaterials: Tuneability and Multistability   An overview of several dynamic properties of SQUID metamaterials is given in
the presence of both constant and alternating magnetic field. The total current
as a function of the driving frequency exhibits hysteretic effects which are
favored by low levels of disorder. Multistability in the current states leads
to multiple magnetic responses with different value of magnetic permeability.
SQUID metamaterials exhibit wide-band tuneability which is periodic with the
applied constant magnetic field; the numerical calculations reproduce fairly
well recent experimental results. Current work also reveals the possibility for
wave transmission through nonlinear bands, which is briefly discussed.

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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: math
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The categories of this paper are: hep-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: gr-qc