Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gate-Controlled Skyrmion Chirality   Magnetic skyrmions are localized chiral spin textures, which offer great
promise to store and process information at the nanoscale. In the presence of
asymmetric exchange interactions, their chirality, which governs their
dynamics, is generally considered as an intrinsic parameter set during the
sample deposition. In this work, we experimentally demonstrate that this key
parameter can be controlled by a gate voltage. We observed that the
current-induced skyrmion motion can be reversed by the application of a gate
voltage. This local and dynamical reversal of the skyrmion chirality is due to
a sign inversion of the interfacial Dzyaloshinskii-Moriya interaction that we
attribute to ionic migration of oxygen under gate voltage. Micromagnetic
simulations show that the chirality reversal is a continuous transformation, in
which the skyrmion is conserved. This gate-controlled chirality provides a
local and dynamical degree of freedom, yielding new functionalities to
skyrmion-based logic devices.

31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con