Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Angle-dependence and optimal design for magnetic bubblecade with maximum
  speed   Unidirectional magnetic domain-wall motion is a key concept underlying
next-generation application devices. Such motion has been recently demonstrated
by applying an alternating magnetic field, resulting in the coherent
unidirectional motion of magnetic bubbles. Here we report the optimal
configuration of applied magnetic field for the magnetic bubblecade, the
coherent unidirectional motion of magnetic bubbles, driven by a tilted
alternating magnetic field. The tilted alternating magnetic field induces
asymmetric expansion and shrinkage of the magnetic bubbles under the influence
of the Dzyaloshinskii-Moriya interaction, resulting in continuous shift of the
bubbles in time. By realizing the magnetic bubblecade in PtCoPt films, we find
that the bubblecade speed is sensitive to the tilt angle with a maximum at an
angle, which can be explained well by a simple analytical form within the
context of the domain-wall creep theory. A simplified analytic formula for the
angle for maximum speed is then given as a function of the amplitude of the
alternating magnetic field. The present observation provides a practical design
rule for memory and logic devices based on the magnetic bubblecade.

15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat