Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ultrahigh efficient spin-orbit torque magnetization switching in
  all-sputtered topological insulator - ferromagnet multilayers   Spin-orbit torque (SOT) magnetization switching of ferromagnets with large
perpendicular magnetic anisotropy has a great potential for the next-generation
non-volatile magnetoresistive random-access memory (MRAM). It requires a
high-performance pure spin current source with a large spin Hall angle and high
electrical conductivity, which can be fabricated by a mass production
technique. In this work, we demonstrate ultrahigh efficient and robust SOT
magnetization switching in all-sputtered BiSb topological insulator -
perpendicularly magnetized Co/Pt multilayers. Despite fabricated by the
industry-friendly magnetron sputtering instead of the laboratory molecular beam
epitaxy, the topological insulator layer, BiSb, shows a large spin Hall angle
of $\theta$$_{SH}$ = 12.3 and high electrical conductivity of $\sigma$ =
1.5x$10^5$ $\Omega^{-1}$m$^{-1}$. Our results demonstrate the mass production
capability of BiSb topological insulator for implementation of ultralow power
SOT-MRAM and other SOT-based spintronic devices.

26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math