Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Configurable pixelated skyrmions on nanoscale magnetic grids   Topological spin textures can serve as non-volatile information carriers.
Here we study the current-induced dynamics of an isolated magnetic skyrmion on
a nanoscale square-grid pinning pattern formed by orthogonal defect lines with
reduced magnetic anisotropy. The skyrmion on the square grid can be pixelated
with a quantized size of the grid. We demonstrate that the position, size, and
shape of skyrmion on the square grid are electrically configurable. The
skyrmion center is quantized to be on the grid and the skyrmion may show a
hopping motion instead of a continuous motion. We find that the skyrmion Hall
effect can be perfectly prohibited due to the pinning effect of the grid. The
pixelated skyrmion can be harnessed to build future programmable racetrack
memory, multistate memory, and logic computing device. Our results will be a
basis for digital information storage and computation based on pixelated
topological spin textures on artificial pinning patterns.

36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con