https://doi.org/10.1140/epjb/s10051-026-01135-0
Research - Condensed Matter
Theory of two-band metallicity from correlation plus site-diagonal disorder in the CDW-Mott phase of 2H-TaSe
1
Institute of Physics, Federal University of Mato Grosso, 78060-900, Cuiabá, MT, Brazil
2
Leibniz Institute for Solid State and Materials Research Dresden, 01069, Dresden, Germany
a
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Received:
3
December
2025
Accepted:
27
January
2026
Published online:
13
March
2026
Abstract
Using dynamical mean-field theory (DMFT), we explore the many-particle properties of an extended two-band Hubbard model applicable to 2H-TaSe superconductor. We reveal the electronic reconstruction of the CDW-Mott state driven by site-diagonal disorder with distinct many-particle excitations. Our results offer new microscopic theory insights into the Mott–Anderson nature of charge carriers and the correlated metallic state which emerges from site-diagonal disorder within the CDW-Mott regime.
© The Author(s) 2026
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