Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Epitaxial ferromagnetic Fe$_{3}$Si/Si(111) structures with high-quality
  hetero-interfaces   To develop silicon-based spintronic devices, we have explored high-quality
ferromagnetic Fe$_{3}$Si/silicon (Si) structures. Using low-temperature
molecular beam epitaxy at 130 $^circ$C, we realize epitaxial growth of
ferromagnetic Fe$_{3}$Si layers on Si (111) with keeping an abrupt interface,
and the grown Fe$_{3}$Si layer has the ordered $DO_{3}$ phase. Measurements of
magnetic and electrical properties for the Fe$_{3}$Si/Si(111) yield a magnetic
moment of ~ 3.16 $mu_{B}$/f.u. at room temperature and a rectifying
Schottky-diode behavior with the ideality factor of ~ 1.08, respectively.

12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph