Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Importance of the V 3d-O 2p hybridization in the Mott-Hubbard material
  V2O3   We studied the changes in the electronic structure of V2O3 using a cluster
model. The calculations included fluctuations from the coherent band in the
metallic phase, and non-local Mott-Hubbard fluctuations in the insulating
phase. The incoherent structure is mostly related to the usual ligand screening
channel (3d2L). The coherent peak in the metallic phase corresponds to coherent
band fluctuations (3d2C). The non-local screened state in the insulating phase
(3d2D) appears at higher energies, opening the band gap. The photon energy
dependence of the spectra is mostly due to the relative V 3d and O 2p cross
sections. The present model reproduces also the observed changes in the V 1s
core-level spectra. The above results suggest that the Mott-Hubbard transition
in V2O3 requires a multi-band model.

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The categories of this paper are: hep-lat
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: plasm-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: funct-an
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: econ
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The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
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The categories of this paper are: supr-con
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The categories of this paper are: alg-geom
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The categories of this paper are: gr-qc
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The categories of this paper are: math-ph