Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electric field-induced creation and directional motion of domain walls
  and skyrmion bubbles   Magnetization dynamics driven by an electric field could provide long-term
benefits to information technologies because of its ultralow power consumption.
Meanwhile, the Dzyaloshinskii-Moriya interaction in interfacially asymmetric
multilayers consisting of ferromagnetic and heavy-metal layers can stabilize
topological spin textures, such as chiral domain walls, skyrmions, and skyrmion
bubbles. These topological spin textures can be controlled by an electric
field, and hold promise for building advanced spintronic devices. Here, we
present an experimental and numerical study on the electric field-induced
creation and directional motion of topological spin textures in magnetic
multilayer films and racetracks with thickness gradient and interfacial
Dzyaloshinskii-Moriya interaction at room temperature. We find that the
electric field-induced directional motion of chiral domain wall is accompanied
with the creation of skyrmion bubbles at certain conditions. We also
demonstrate that the electric field variation can induce motion of skyrmion
bubbles. Our findings may provide opportunities for developing skyrmion-based
devices with ultralow power consumption.

16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess