Pseudogap and Mott Transition Studied by Cellular Dynamical Mean Field Theory

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dc.creatorZhang, Y. Z.
dc.creatorImada, Masatoshi
dc.date2007-06-04
dc.date.accessioned2026-07-07T08:18:40Z
dc.date.available2026-07-07T08:18:40Z
dc.descriptionWe study metal-insulator transitions between Mott insulators and metals. The transition mechanism completely different from the original dynamical mean field theory (DMFT) emerges from a cluster extension of it. A consistent picture suggests that the quasiparticle weight $Z$ remains nonzero through metals and suddenly jumps to zero at the transition, while the gap opens continuously in the insulators. This is in contrast with the original DMFT, where $Z$ continuously vanishes but the gap opens discontinuously. The present results arising from electron differentiation in momentum space agree with recent puzzling bulk-sensitive experiments on CaVO$_3$ and SrVO$_3$.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0706.0444
dc.identifierhttp://arxiv.org/abs/0706.0444
dc.identifierPhys. Rev. B 76, 045108 (2007)
dc.identifierdoi:10.1103/PhysRevB.76.045108
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/134512
dc.subjectStrongly Correlated Electrons
dc.titlePseudogap and Mott Transition Studied by Cellular Dynamical Mean Field Theory
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