Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strain and electric-field control of spin-spin interactions in monolayer
  CrI$_3$   We investigate the impact of mechanical strains and a perpendicular electric
field on the electronic and magnetic ground-state properties of two-dimensional
monolayer CrI$_3$ using density functional theory. We propose a minimal spin
model Hamiltonian, consisting of symmetric isotropic exchange interactions,
magnetic anisotropy energy, and Dzyaloshinskii-Moriya (DM) interactions, to
capture most pertinent magnetic properties of the system. We compute the
mechanical strain and electric field dependence of various spin-spin
interactions. Our results show that both the amplitudes and signs of the
exchange interactions can be engineered by means of strain, while the electric
field affects only their amplitudes. However, strain and electric fields affect
both the directions and amplitudes of the DM vectors. The amplitude of the
magnetic anisotropy energy can also be substantially modified by an applied
strain. We show that in comparison with an electric field, strain can be more
efficiently used to manipulate the magnetic and electronic properties of the
system. Notably, such systematic tuning of the spin interactions is essential
for the engineering of room-temperature spintronic nanodevices.

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The categories of this paper are: math
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph