Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chiral Domain Wall Injector Driven by Spin-orbit Torques   Memory and logic devices that encode information in magnetic domains rely on
the controlled injection of domain walls to reach their full potential. In this
work, we exploit the chiral coupling induced by the Dzyaloshinskii-Moriya
interaction between in-plane and out-of-plane magnetized regions of a
Pt/Co/AlO\textsubscript{x} trilayer in combination with current-driven
spin-orbit torques to control the injection of domain walls into magnetic
conduits. We demonstrate that the current-induced domain nucleation is strongly
inhibited for magnetic configurations stabilized by the chiral coupling and
promoted for those that have the opposite chirality. These configurations allow
for efficient domain wall injection using current densities of the order of
$4\times$\SI{e11}{A m^{-2}}, which are lower than those used in other injection
schemes. Furthermore, by setting the orientation of the in-plane magnetization
using an external field, we demonstrate the use of a chiral domain wall
injector to create a controlled sequence of alternating domains in a racetrack
structure driven by a steady stream of unipolar current pulses.

28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th