Spectroscopy of mott insulators and correlated metals proceedings of the 17th Taniguchi Symposium, Kashikojima, Japan, October 24 - 28, 1994

**Spectroscopy of Mott** I**nsulators and Correlated Metals** Extensive studies of high-Tc cuprate superconductors have stimualted investigations into various transition-metal oxides. Mott transitions in particular provide fascinating problems and new concepts in condensed matter physics. This book is a collection of short overviews by well-known, active researchers in this field. It deals with the latest developments, with particular emphasis on the theoretical, spectroscopic, and transport aspects. Front Matter....Pages I-XV Front Matter....Pages 1-1 Classification Scheme of the Metal-Insulator Transition and Anomalous Metals....Pages 3-14 The Mott Transition: Results from Mean-Field Theory....Pages 15-27 Some Aspects of Spin Gap in One- and Two-Dimensional Systems....Pages 28-33 Quasi-Particles in Two-Dimensional Hubbard Model: Splitting of Spectral Weight....Pages 34-40 Almost Localized Fermions and Mott-Hubbard Transitions at Non-Zero Temperature....Pages 41-65 Anomalous Physical Properties Around Magnetic and Metal-Insulator Transitions — A Spin-Fluctuation Theory....Pages 66-79 Exact Diagonalization Study of Strongly Correlated Electron Models: Hole Pockets and Shadow Bands in the Doped t-J Model....Pages 80-91 Front Matter....Pages 93-93 Electronic Band Structures of LaMO 3 (M = Ti, V, Cr,..., Ni, Cu) in the Local Spin-Density Approximation....Pages 95-105 First-Principles Calculations of the Electronic Structure and Spectra of Strongly Correlated Systems: LDA + U Method....Pages 106-116 Unrestricted Hartree-Fock Study of Perovskite-Type Transition-Metal Oxides....Pages 117-125 Electronic Structure of Transition Metal Compounds....Pages 126-138 Core-Level Spectroscopy in Early-Transition-Metal Compounds....Pages 139-149 Systematics of Optical Gaps in Perovskite-Type 3d Transition Metal Oxides....Pages 150-159 Front Matter....Pages 161-161 Optical Spectroscopy on the Mott Transition in Perovskite-Type Titanates....Pages 163-173 Spectral Weight Transfer and Mass Renormalization in Correlated d-Electron Systems....Pages 174-184 Charge Transport Properties of Strongly Correlated Metals near Charge Transfer Insulator to Metal Transition....Pages 185-193 Infrared Studies of Kondo Insulator and Related Compounds....Pages 194-201 Front Matter....Pages 203-203 Magnetic Correlations in Doped Transition-Metal Oxides....Pages 205-212 Spin and Charge Differentiation in Doped CuO 2 Planes Observed by Cu NMR/NQR Spectra....Pages 213-220 Orbital-Spin Coupling in V 2 O 3 and Related Oxides....Pages 221-229 Front Matter....Pages 203-203 Magnetic and Transport Properties of the Kondo Lattice Model with Ferromagnetic Exchange Coupling....Pages 230-238 Front Matter....Pages 239-239 Superconductivity, Magnetism and Metal-Insulator Transitions in Some Ternary and Pseudoternary 3d-, 4d-, and 5d-Metal Oxides....Pages 241-254 NMR Studies of Superconductivity and Metal-Insulator Transition in Cu Spinel CuM 2 X 4 (M = Rh, Ir and X = S, Se)....Pages 255-264 Back Matter....Pages 265-269 Spectroscopy of Mott I nsulators and Correlated Metals Extensive studies of high-Tc cuprate superconductors have stimualted investigations into various transition-metal oxides. Mott transitions in particular provide fascinating problems and new concepts in condensed matter physics. This book is a collection of short overviews by well-known, active researchers in this field. It deals with the latest developments, with particular emphasis on the theoretical, spectroscopic, and transport aspects. This text is a collection of overviews by researchers in the field of condensed matter physics. It deals with the latest developments, with particular emphasis on the theoretical, spectroscopic and transport aspects.