Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Helical Hinge Majoranas in Iron-Based Superconductors   Motivated by recent experiments on FeTe$_{1-x}$Se$_{x}$, we construct an
explicit minimal model of an iron-based superconductor with band inversion at
the $Z$ point and non-topological bulk $s_{\pm}$ pairing. While there has been
considerable interest in Majorana zero modes localized at vortices in such
systems, we find that our model - without any vortices - intrinsically supports
1D helical Majorana modes localized at the hinges between (001) and (100) or
(010) surfaces, suggesting that this is a viable platform for observing
"higher-order" topological superconductivity. We provide a general theory for
these hinge modes and discuss their stability and experimental manifestation.
Our work indicates the possible experimental observability of hinge Majoranas
in iron-based topological superconductors.

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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: q-fin
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The categories of this paper are: comp-gas
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The categories of this paper are: stat
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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: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: cs
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The categories of this paper are: supr-con
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The categories of this paper are: econ
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-th