Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Confinement of magnetism in atomically-thin
  $La_{0.7}Sr_{0.3}CrO_3$/$La_{0.7}Sr_{0.3}MnO_3$ heterostructures   At crystalline interfaces where a valence mismatch exists, electronic and
structural interactions may occur to relieve the polar mismatch leading to the
stabilization of non-bulklike phases. We show that spontaneous reconstructions
at polar $La_{0.7}Sr_{0.3}MnO_3$ interfaces are correlated with suppressed
ferromagnetism for film thicknesses on the order of a unit cell. We investigate
the structural and magnetic properties of valence-matched
$La_{0.7}Sr_{0.3}CrO_3$ - $La_{0.7}Sr_{0.3}MnO_3$ interfaces using a
combination of high-resolution electron microscopy, first principles theory,
synchrotron X-ray scattering and magnetic spectroscopy and
temperature-dependent magnetometry. A combination of an antiferromagnetic
coupling between the $La_{0.7}Sr_{0.3}CrO_3$ and $La_{0.7}Sr_{0.3}MnO_3$ layers
and a suppression of interfacial polar distortions are found to result in
robust long range ferromagnetic ordering for ultra-thin
$La_{0.7}Sr_{0.3}MnO_3$. These results underscore the critical importance of
interfacial structural and magnetic interactions in the design of devices based
on two-dimensional oxide magnetic systems.

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The categories of this paper are: stat
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The categories of this paper are: q-fin
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The categories of this paper are: eess
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
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The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
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The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
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The categories of this paper are: nlin
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The categories of this paper are: hep-lat