Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tunable inertia of chiral magnetic domain walls   The time it takes to accelerate an object from zero to a given velocity
depends on the applied force and the environment. If the force ceases, it takes
exactly the same time to completely decelerate. A magnetic domain wall (DW) is
a topological object that has been observed to follow this behavior. Here we
show that acceleration and deceleration times of chiral Neel walls driven by
current are different in a system with low damping and moderate
Dzyaloshinskii-Moriya (DM) exchange constant. The time needed to accelerate a
DW with current via the spin Hall torque is much faster than the time it needs
to decelerate once the current is turned off. The deceleration time is defined
by the DM exchange constant whereas the acceleration time depends on the spin
Hall torque, enabling tunable inertia of chiral DWs. Such unique feature of
chiral DWs can be utilized to move and position DWs with lower current, key to
the development of storage class memory devices.

28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph