Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dzyaloshinskii-Moriya Interaction-Induced Magnetoelectric Coupling in a
  tetrahedral Molecular Spin-Frustrated System   We have investigated magnetoelectric coupling in the single-molecule magnet
$\mathrm{Mn}_{4}\mathrm{Te}_{4}(\mathrm{P}\mathrm{Et}_{3})_{4}$ with
tetrahedral spin frustration. Our density functional studies found that an
electric dipole moment can emerge with various non-collinear spin orderings.
The forms of spin-dependent dipole are determined and consistent with that in
non-centrosymmetric magnets driven by the Dzyaloshinskii-Moriya interaction.
Writing a parameterized spin Hamiltonian, after solving for eigenvalues and
eigenstates we quantified the magnetoelectric coupling by calculating the
thermal average of the electric and magnetic susceptibilities, which can be
influenced by external magnetic and electric fields, respectively. The
quadratic relations are expected to be observable in experiments.

2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex