Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interface modes in planar one-dimensional magnonic crystals   We present the concept of Zak phase for spin waves in planar magnonic
crystals and discuss the conditions for the existence of interface modes
localized on the boundary between two magnonic crystals with centrosymmetric
unit cells. Using the symmetry criterion and the calculated logarithmic
derivative of the Bloch function we study the interface modes to demonstrate
the bulk-edge correspondence. Our theoretical results are verified numerically
for structures in the exchange and exchange-dipolar regimes and extended to the
case in which one of the magnonic crystals has an arbitrary unit cell.
Moreover, we show that by shifting the unit cell the interface modes can be
caused to traverse the bandgap edges.

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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: physics
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The categories of this paper are: nlin
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: astro-ph
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The categories of this paper are: econ
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The categories of this paper are: cs
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: supr-con
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-lat