Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anisotropic quasiparticle renormalization in Na0.73CoO2: role of
  inter-orbital interactions and magnetic correlations   We report an angular resolved photoemission study of Na0.73CoO2 where it is
found that the renormalization of the quasiparticle (QP) dispersion changes
dramatically upon a rotation from GM to GK. The comparison of the experimental
data to the calculated band structure reveals that the QP-renormalization is
most pronounced along the GK-direction, while it is significantly weaker along
the GM-direction. We discuss the observed anisotropy in terms of multiorbital
effects and point out the relevance of magnetic correlations for the band
structure of Na0.73CoO2.

15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con