Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Critical behavior of two-dimensional intrinsically ferromagnetic
  semiconductor CrI3   CrI3, which belongs to a rare category of two-dimensional (2D) ferromagnetic
semiconductors, is of great interest for spintronic device applications. Unlike
CrCl3 whose magnetism presents a 2D-Heisenberg behavior, CrI3 exhibits a larger
van der Waals gap, smaller cleavage energy, and stronger magnetic anisotropy
which could lead to a 3D magnetic characteristic. Hence, we investigate the
critical behavior of CrI3 in the vicinity of magnetic transition. We use the
modified Arrott plot and Kouvel-Fisher method, and conduct critical isotherm
analysis to estimate the critical exponents near the ferromagnetic phase
transition. This shows that the magnetism of CrI3 follows the crossover
behavior of a 3D-Ising model with mean field type interactions where the
critical exponents \b{eta}, {\gamma}, and {\delta} are 0.323, 0.835, and 3.585,
respectively, at the Curie temperature of 64 K. We propose the crossover
behavior can be attributed to the strong uniaxial anisotropy and inevitable
interlayer coupling. Our experiment demonstrates the applicability of crossover
behavior to a 2D ferromagnetic semiconductor.

25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga