Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Noncontact dissipation reveals critical central peak in SrTiO3   The critical fluctuations at second order structural transitions in a bulk
crystal may affect the dissipation of mechanical probes even if completely
external to the crystal surface. Here we show that noncontact force microscope
dissipation bears clear evidence of the antiferrodistortive phase transition of
SrTiO3, known for a long time to exhibit a unique, extremely narrow neutron
scattering "central peak". The noncontact geometry suggests a central peak
linear response coupling connected with strain. The detailed temperature
dependence reveals for the first time the intrinsic central peak width of order
80 kHz, two orders of magnitude below the established neutron upper bound.

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The categories of this paper are: hep-lat
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
33
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: funct-an
10
The categories of this paper are: q-bio
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The categories of this paper are: q-alg
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The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
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The categories of this paper are: econ
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: comp-gas