Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ultrafast imprinting of topologically protected magnetic textures via
  pulsed electrons   Short electron pulses are demonstrated to trigger and control magnetic
excitations, even at low electron current densities.
  We show that the tangential magnetic field surrounding a picosecond electron
pulse can imprint topologically protected magnetic textures such as skyrmions
in a sample with a residual Dzyaloshinskii-Moriya spin-orbital coupling.
Characteristics of the created excitations such as the topological charge can
be steered via the duration and the strength of the electron pulses. The study
points to a possible way for a spatio-temporally controlled generation of
skyrmionic excitations.

21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio