Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing electronic and magnetic transitions of short periodic nickelate
  superlattices using synchrotron x-ray   Transition metal based oxide heterostructures exhibit diverse emergent
phenomena e.g. two dimensional electron gas, superconductivity, non-collinear
magnetic phase, ferroelectricity, polar vortices, topological Hall effect etc.,
which are absent in the constituent bulk oxides. The microscopic understandings
of these properties in such nanometer thick materials are extremely
challenging. Synchrotron x-ray based techniques such as x-ray diffraction,
x-ray absorption spectroscopy (XAS), resonant x-ray scattering (RXS), resonant
inelastic x-ray scattering (RIXS), x-ray photoemission spectroscopy, etc. are
essential to elucidating the response of lattice, charge, orbital, and spin
degrees of freedoms to the heterostructuring. As a prototypical case of complex
behavior, rare-earth nickelates (RENiO3 with RE=La, Pr, Nd, Sm, Eu, Lu) based
thin films and heterostructures have been investigated quite extensively in
recent years. An extensive body of literature about these systems exists and
for an overview of the field, we refer the interested readers to the recent
reviews Annual Review of Materials Research 46, 305 (2016) and Reports on
Progress in Physics 81, 046501 (2018). In the present article, we give a brief
review that concentrates on the use of synchrotron based techniques to
investigate a specific set of EuNiO3/LaNiO3 superlattices, specifically
designed to solve a long-standing puzzle about the origin of simultaneous
electronic, magnetic and structural transitions of the RENiO3 series.

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The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th
3
The categories of this paper are: physics
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The categories of this paper are: quant-ph
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: hep-lat
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The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org
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The categories of this paper are: nlin
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph