Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interplay between magnetic properties and thermoelectricity in misfit
  and Na cobaltates   We present a comparative study of CoO2 layers in the Bi-misfit and NaxCoO2
cobaltates. Co NMR measures the intrinsic susceptibility of the Co layers and
is not affected by spurious contributions. At low dopings where
room-temperature thermopower (TEP) is large, Curie-Weiss susceptibilities are
observed in both materials. But NMR and muSR experiments find neither charge
nor spin order down to low temperatures in Bi-misfit, in contrast to the case
of NaxCoO2. This demonstrates that metallicity, charge and magnetic orders are
specific of the Na layers in NaxCoO2 whereas strong correlations are generic of
the cobaltates physics and could explain the large TEP.

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The categories of this paper are: hep-ph
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org