Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetoelectricity in two-dimensional materials   Since the initial isolation of few-layer graphene, a plethora of
two-dimensional atomic crystals has become available, covering almost all known
materials types including metals, semiconductors, superconductors, ferro- and
antiferromagnets. These advances have augmented the already existing variety of
two-dimensional materials that are routinely realized by quantum confinement in
bulk-semiconductor heterostructures. This review focuses on the type of
material for which two-dimensional realizations are still being actively
sought: magnetoelectrics. We present an overview of current theoretical
expectation and experimental progress towards fabricating low-dimensional
versions of such materials that can be magnetized by electric charges and
polarized electrically by an applied magnetic field - unusual electromagnetic
properties that could be the basis for various useful applications. The
interplay between spatial confinement and magnetoelectricity is illustrated
using the paradigmatic example of magnetic-monopole fields generated by
electric charges in or near magnetoelectric media. For the purpose of this
discussion, the image-charge method familiar from electrostatics is extended to
solve the boundary-value problem for a magnetoelectric medium in the
finite-width slab geometry using image dyons, i.e., point objects having both
electric and magnetic charges. We discuss salient features of the
magnetoelectrically induced fields arising in the thin-width limit.

17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs