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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4790

Title: Nature of insulating state in NaV2O5 above charge-ordering transition: A cluster dynamical mean-field study
Authors: MAZURENKO, VV
LICHTENSTEIN, AI
KATSNELSON, MI
DASGUPTA, I
SAHA-DASGUPTA, T
ANISIMOV, VI
Keywords: first-principles calculations
strongly correlated systems
d-wave superconductivity
filled ladder compound
spin-peierls compound
electronic-structure
alpha'-nav2o5
temperature
spectra
freedom
Issue Date: 2002
Publisher: AMERICAN PHYSICAL SOC
Citation: PHYSICAL REVIEW B, 66(8), -
Abstract: The nature of the insulating state driven by electronic correlations in the quarter-filled ladder compound alpha(')NaV(2)O(5) is investigated within a cluster dynamical mean-field approach. An extended Hubbard model with first-principles tight-binding parameters has been used. It is shown that the insulating state in the charge-disordered phase of this compound is formed due to the transfer of spectral density and dynamical charge fluctuations where for the latter, the role of intersite Coulomb interaction is found to be of crucial importance.
URI: http://dx.doi.org/10.1103/PhysRevB.66.081104
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4790
http://hdl.handle.net/10054/4790
ISSN: 1098-0121
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