Title
Band structure and questioned dimensionality of alpha '-NaV2 O-5 Band structure and questioned dimensionality of alpha '-NaV2 O-5
Author
Publication type
article
Publication
Paris ,
Subject
Physics
Source (journal)
Europhysics letters. - Paris
Volume/pages
56(2001) :1 , p. 74-80
ISSN
0295-5075
ISI
000171459800012
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
alpha'-NaV2O5 is classified as a dimerized layered system with strongly interacting d-electrons of vanadium ions. The derived band gaps, energy dispersion relations and density of electronic states are in good agreement with available experimental and theoretical data. The correlated band gap provides the insulating state of the high-temperature phase whereas the state, earlier misinterpreted as the spin-Peierls state, is governed, in fact, by the opening of the Coulomb gap.
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