Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Long-range crystalline nature of the skyrmion lattice in MnSi   We report small angle neutron scattering of the skyrmion lattice in MnSi
using an experimental set-up that minimizes the effects of demagnetizing fields
and double scattering. Under these conditions the skyrmion lattice displays
resolution-limited Gaussian rocking scans that correspond to a magnetic
correlation length in excess of several hundred {\mu}m. This is consistent with
exceptionally well-defined long-range order. We further establish the existence
of higher-order scattering, discriminating parasitic double-scattering with
Renninger scans. The field and temperature dependence of the higher-order
scattering arises from an interference effect. It is characteristic for the
long-range crystalline nature of the skyrmion lattice as shown by simple mean
field calculations.

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The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
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The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc