Titlebook: Spectroscopy of Mott Insulators and Correlated Metals; Proceedings of the 1 Atsushi Fujimori,Yoshinori Tokura Conference proceedings 1995 S

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Classification Scheme of the Metal-Insulator Transition and Anomalous Metalsrucial role. Critical exponents such as the Drude weight, the correlation length and the dynamical exponent are investigated for both types of the transitions using the scaling theory. Anomalous properties of the metallic state near the Mott insulator are analyzed in light of this classification for the criticality and crossovers.

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Core-Level Spectroscopy in Early-Transition-Metal Compoundsnd BIS are also calculated for TiO., Ti.O. and VO., and an important role of the hybridization is pointed out. Finally, some results of a systematic analysis of core-level spectra are given for oxides and halides of Ti, V, Cr and Mn.

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Exact Diagonalization Study of Strongly Correlated Electron Models: Hole Pockets and Shadow Bands innction .(.) of the two-dimensional . model as a representative model for doped Mott insulators. The results for .(., .) show unambiguously that the rigid-band behavior is realized in the small-cluster . model: upon doping, the uppermost states of the quasiparticle band observed at half filling simpl

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First-Principles Calculations of the Electronic Structure and Spectra of Strongly Correlated Systems description of the Mott insulators. The LDA+U method is based on the model hamiltonian approach and allows to take into account the non-sphericity of the Coulomb and exchange interactions. parameters. Orbital-dependent LDA+U potential gives correct orbital polarization and corresponding Jahn-Teller