Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Large in-plane deformation of RuO6 octahedron and ferromagnetism of bulk
  SrRuO3   SrRuO3 is a ferromagnetic metal with several unusual physical properties such
as zero thermal expansion below Tc, so-called Invar behavior. Another anomalous
feature is that the a-axis lattice constant is larger than the b-axis lattice
constant, a clear deviation from the predictions of the Glazer structural
description with rigid RuO6 octahedron motion. Using high resolution neutron
diffraction techniques, we show how these two structural anomalies arise from
the irregular in-plane deformation, i.e. plastic behavior of the RuO6
octahedron, a weak band Jahn-Teller distortion. We further demonstrate that the
ferromagnetic instability of SrRuO3 is related to the temperature-induced
localization of Ru 4d bands.

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The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: physics
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph