Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A microwave field-driven transistor-like skyrmionic device with the
  microwave current-assisted skyrmion creation   Magnetic skyrmion is a topologically protected domain-wall structure at
nanoscale, which could serve as a basic building block for advanced spintronic
devices. Here, we propose a microwave field-driven skyrmionic device with the
transistor-like function, where the motion of a skyrmion in a voltage-gated
ferromagnetic nanotrack is studied by micromagnetic simulations. It is
demonstrated that the microwave field can drive the motion of a skyrmion by
exciting propagating spin waves, and the skyrmion motion can be governed by a
gate voltage. We also investigate the microwave current-assisted creation of a
skyrmion to facilitate the operation of the transistor-like skyrmionic device
on the source terminal. It is found that the microwave current with an
appropriate frequency can reduce the threshold current density required for the
creation of a skyrmion from the ferromagnetic background. The proposed
transistor-like skyrmionic device operated with the microwave field and current
could be useful for building future skyrmion-based circuits.

29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc