Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Emergent interlayer magnetic order via strain-induced orthorhombic
  distortion in the 5d Mott insulator Sr2IrO4   We report a La2CuO4-like interlayer antiferromagnetic order in Sr2IrO4 films
with large orthorhombic distortion (> 1.5%). The biaxial lattice strain in
epitaxial heterostructures of Sr2IrO4/Ca3Ru2O7 lowers the crystal symmetry of
Sr2IrO4 from tetragonal (C4) to orthorhombic (C2), guiding the Ir 5d Jeff = 1/2
pseudospin moment parallel to the elongated b-axis via magnetic anisotropy.
From resonant X-ray scattering experiments, we observed an antiferromagnetic
order in the orthorhombic Sr2IrO4 film whose interlayer stacking pattern is
inverted from that of the tetragonal Sr2IrO4 crystal. This interlayer stacking
is similar to that of the orthorhombic La2CuO4, implying that the asymmetric
interlayer exchange interaction along a and b-directions exceeds the
anisotropic interlayer pseudo-dipolar interaction. Our result suggests that
strain-induced distortion can provide a delicate knob for tuning the long-range
magnetic order in quasi-two-dimensional systems by evoking the competition
between the interlayer exchange coupling and the pseudo-dipolar interaction.

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The categories of this paper are: eess
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
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The categories of this paper are: physics
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The categories of this paper are: atom-ph
2
The categories of this paper are: math
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The categories of this paper are: acc-phys