Concepts in Electron Correlation

1. Front Matter

   Pages i-5

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2. Superconductivity by Kinetic Energy Saving?

   • D. Van Der Marel, H. J. A. Molegraaf, C. Presura, I. Santoso

   Pages 7-16

3. Josephson Effect In The Cuprates: Microscopic Implications

   • R. Hlubina

   Pages 17-25

4. Ruthenates: Unconventional Superconductivity and Magnetic Properties

   • Manfred Sigrist

   Pages 27-34

5. Real Structure of Perovskites Looked at From the Band Structure Point of View

   • K. -D. Schotte, C. T. Liang

   Pages 35-43

6. Towards Models of Magnetic Interactions in the Cuprates

   • H. Eschrig, K. Koepernik, I. Chaplygin

   Pages 45-53

7. C-Axis Intra-Layer Couplings in the CUO₂ Planes of High-T_c Cuprates

   • J. Röhler

   Pages 55-63

8. Spectral Functions and Pseudogap in a Model of Strongly Correlated Electrons

   • P. Prelovšek, A. Ramšak

   Pages 65-73

9. Mott Insulator to Superconductor VIA Pressure RVB Theory & Prediction of New Systems

   • G. Baskaran

   Pages 75-84

10. Exploring the Phase Diagram of the Quasi-2D Organic Superconductors κ -(BEDT-TTF)2X

    • Michael Lang, Jens Müller, Frank Steglich, John Schlueter, Takahiko Sasaki

    Pages 85-93

11. Enhancement of Superconductivity by Strong Correlations: A Model Study

    • Michele Fabrizio, Erio Tosatti, Massimo Capone, Claudio Castellani

    Pages 95-113

12. Inelastic Light Scattering and the Correlated Metal-Insulator Transition

    • J. K. Freericks, T. R. Devereaux, R. Bulla

    Pages 115-122

13. Orbital Physics Versus Spin Physics: the Orbital-Hubbard Model

    • Louis Felix Feiner, Andrzej M. Oleś

    Pages 123-131

14. Quasiparticles in Photoemission Spectra of Manganites

    • J. Bała, Andrzej M. Oleś

    Pages 133-141

15. Metals Near a Zero-Temperature Magnetic Instability

    • H. V. Löhneysen

    Pages 143-153

16. Heavily Doped Semiconductors: Magnetic Moments, Electron-Electron Interactions and the MetalInsulator Transition

    • H. V. Löhneysen

    Pages 155-167

17. Competition and Coexistence of Magnetic and Quadrupolar Ordering

    • P. Fazekas, A. Kiss

    Pages 169-177

18. Low Dimensional Spin Systems in High Magnetic Fields: Spin-Phonon Interaction

    • B. Lüthi, B. Wolf, S. Zherlitsyn

    Pages 179-187

19. ‘Taxonomy’ of Electron Glasses

    • N. P. Armitage, E. Helgren, G. Grüner

    Pages 189-197

20. Renormalization Group Approaches for Systems with Electron-Electron and Electron-Phonon Interactions

    • A. C. Hewson, D. Meyer

    Pages 199-207

The NATO sponsored Advanced Research Workshop on "Concepts in Electron Correlation" took place on the Croatian island of Hvar during the period from the 29th of September to the 3rd of October, 2002. The topic of electron correlation is a fundamental one in the field of condensed matter, and one that is being very actively studied both experimentally and theoretically at the present time. The manifestations of electron cor­ relation are diverse, and play an important role in systems ranging from high temperature superconductors, heavy fermions, manganite compounds with colossal magnetoresistance, transition metal compounds with metal­ insulator transitions, to mesoscopic systems and quantum dots. The aim of the workshop was to provide an opportunity for a dialogue between exper­ imentalists and theoreticians to assess the current state of understanding, and to set an agenda for future work. There was also a follow-up workshop on the same topic where the presentations included more background and introductory material for younger researchers in the field. The papers presented in these proceedings clearly demonstrate the di­ versity of current research on electron correlation. They show that real progress is being made in characterising systems experimentally and in developing theoretical approaches for a quantitative comparison with ex­ periment. The more one learns, however, the more there is to understand, and many of the contributions help to map out the territory which has yet to be explored. We hope that the articles in this volume will be a stimulus for such future work.

• band structure
• condensed matter
• condensed matter physics
• electron
• intermetallic compound
• magnetic field
• magnetism
• phase transition
• scattering
• semiconductor
• superconductivity

• Department of Mathematics, Imperial College, London, UK

  Alex C. Hewson

• Institute of Physics, Zagreb, Croatia

  Veljko Zlatić

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