Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Skyrmion robustness in non-centrosymmetric magnets with axial symmetry:
  The role of anisotropy and tilted magnetic fields   We investigate the stability of N\'eel skyrmions against tilted magnetic
fields, in polar magnets with uniaxial anisotropy ranging from easy-plane to
easy-axis type. We construct the corresponding phase diagrams and investigate
the internal structure of skewed skyrmions with displaced cores. We find that
moderate easy-plane anisotropy increases the stability range of N\'eel
skyrmions for fields along the symmetry axis, while moderate easy-axis
anisotropy enhances their robustness against tilted magnetic fields. We stress
that the direction, along which the skyrmion cores are shifted, depends on the
symmetry of the underlying crystal lattice. The cores of N\'eel skyrmions,
realized in polar magnets with C$_{nv}$ symmetry, are displaced either along or
opposite to the off-axis (in-plane) component of the magnetic field depending
on the rotation sense of the magnetization, dictated by the sign of the
Dzyaloshinskii constant. The core shift of antiskyrmions, present in chiral
magnets with D$_{2d}$ symmetry, depends on the in-plane orientation of the
magnetic field and can be parallel, anti-parallel, or perpendicular to it. We
argue that the role of anisotropy in magnets with axially symmetric crystal
structure is different from that in cubic helimagnets. Our results can be
applied to address recent experiments on polar magnets with C$_{3v}$ symmetry,
GaV$_4$S$_8$ and GaV$_4$Se$_8$.

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The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
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The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci