Pseudogap and Mott transition studied by cellular dynamical mean-field theory

Y. Z. Zhang*, Masatoshi Imada

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

78 Citations (Scopus)


We 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 CaV O3 and SrV O3.

Original languageEnglish
Article number045108
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number4
Publication statusPublished - 2007 Jul 17
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


Dive into the research topics of 'Pseudogap and Mott transition studied by cellular dynamical mean-field theory'. Together they form a unique fingerprint.

Cite this