A brief review of recent advances on the Mott transition: unconventional transport, spectral weight transfers, and critical behaviour

Details A brief review of recent advances on the Mott transition: unconventional transport, spectral weight transfers, and critical behaviour A brief review of recent advances on the Mott transition: unconventional transport, spectral weight transfers, and critical behaviour

2003-11-23

arxiv.org/abs/cond-mat/0311520v2

Journal de Physique IV 114, 165 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

Review article. 9 pages, 5 figures. Proceedings of the Vth International Conference on Crystalline Organic Metals, Superconduc

Scientific paper

10.1051/jp4:2004114040

Strongly correlated metals close to the Mott transition display unusual transport regimes, together with large spectral weight transfers in optics and photoemission. We briefly review the theoretical understanding of these effects, based on the dynamical mean-field theory, and emphasize the key role played by the two energy scales associated with quasiparticle coherence scale and with the Mott gap. Recent experimental results on two-dimensional organic compounds and transition metal oxides are considered in this perspective. The liquid-gas critical behaviour at the Mott critical endpoint is also discussed. Transport calculations using the numerical renormalization group are presented.

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