| Issue |
Europhys. Lett.
Volume 56, Number 1, October 2001
|
|
|---|---|---|
| Page(s) | 74 - 80 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and opticalproperties | |
| DOI | https://doi.org/10.1209/epl/i2001-00489-5 | |
| Published online | 01 December 2003 | |
Band structure and questioned dimensionality of
1
Departement Natuurkunde, Universiteit Antwerpen (UIA)
Universiteitsplein 1. B-2610 Antwerpen, Belgium
2
Departement Natuurkunde, Katholieke Universiteit Leuven
Celestijnenlaan 200D, B-3001 Leuven, Belgium
Received:
11
October
2000
Accepted:
12
July
2001
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.
PACS: 71.20.Ps – Other inorganic compounds / 71.27.+a – Strongly correlated electron systems; heavy fermions / 71.30.+h – Metal-insulator transitions and other electronic transitions
© EDP Sciences, 2001
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