Nanoscale Phase Separation and Colossal Magnetoresistance

1. Front Matter

   Pages I-XVIII

   PDF

2. Why Manganites Are Interesting

   • J. R. Schrieffer

   Pages 1-8

3. The Discovery of Manganites and the Colossal Magnetoresistance Effect

   • Elbio Dagotto

   Pages 9-21

4. Phase Diagrams and Basic Properties of Manganites

   • Elbio Dagotto

   Pages 23-50

5. Preliminary Theoretical Considerations: Coulombic and Jahn Teller Effects

   • Elbio Dagotto

   Pages 51-69

6. Models for Manganites

   • Elbio Dagotto

   Pages 71-86

7. The One-Orbital Model: Phase Diagram and Dominant Correlations

   • A. Moreo

   Pages 87-124

8. Monte Carlo Simulations and Application to Manganite Models

   • G. Alvarez, A. Feiguin

   Pages 125-156

9. Mean-Field Approximation

   • T. Hotta

   Pages 157-167

10. Two-Orbitals Model and Orbital Order

    • C. S. Nelson, J. P. Hill, D. Gibbs, S. Ishihara, S. Maekawa

    Pages 169-191

11. Charge Ordering: CE-States, Stripes, and Bi-Stripes

    • T. Hotta

    Pages 193-212

12. Inhomogeneities in Manganites: The Case of La_{1− x} Ca _x MnO₃

    • J. A. Fernandez-Baca, G. Papavassiliou, J. J. Neumeier, A. L. Cornelius

    Pages 213-254

13. Optical Conductivity

    • T. W. Noh

    Pages 255-271

14. Glassy Behavior and Time-Dependent Phenomena

    • P. Schiffer

    Pages 273-285

15. Inhomogeneities in La1−xSrxMnO3 and Pr1−xCaxMnO3

    • Elbio Dagotto

    Pages 287-293

16. Inhomogeneities in Layered Manganites

    • Elbio Dagotto

    Pages 295-301

17. An Elementary Introduction to Percolation

    • Elbio Dagotto

    Pages 303-312

18. Competition of Phases as the Origin of the CMR

    • Y. Tokura, D. I. Khomskii

    Pages 313-347

19. Pseudogaps and Photoemission Experiments

    • Elbio Dagotto

    Pages 349-360

20. Charge-Ordered Nanoclusters above T _C: the Smoking Gun of Phase Separation?

    • Elbio Dagotto

    Pages 361-375

Condensed matter is one of the most active areas of research in physics. Ev­ ery year new materials are discovered with properties that are as challenging as or more than those of the year before. The effort is led mainly by exper­ imentalists, who systematically manage to prepare compounds with exotic new properties, including complex ground states involving nontrivial spin, charge, lattice, and orbital arrangements. This work is typically carried out by a relatively small number of researchers, compared with other disciplines, and the interaction between experimentalists and theorists is quite strong. It is a real pleasure for a theorist, like the author, to have experimental data with which to test proposed ideas in short time scales. This allows for a theory-experiment cross-fertilization that keeps the field very active. These are quite interesting times in condensed matter for sure. This book is devoted to the study of a family of materials known as man­ ganites. As for other exotic compounds, the fast development of experiments has induced a rapid evolution of the main theoretical ideas. A considerable ef­ fort, both on theory and experiments, has led to the currently much-accepted notion that nanoscale phase separation is at the heart of the behavior of elec­ trons in these compounds. This point is described in detail in this book, with a plethora of experimental data, computer simulation results, and analytic calculations supporting that description.

• Monte Carlo simulations
• Potential
• Superconductor
• colossal magnetoresistance
• computational methods
• glasses
• high temperature superconductors
• manganites
• nanoscale phase separation
• physics
• strongly correlated electrons

From the reviews:

"Dagotto has authored a fascinating book that comprehensively presents both the physical properties of manganites and our theoretical understanding of these unusual properties. … the publishers have, as usual, produced a durable volume which is well bound, nicely typeset, and nicely illustrated with many useful figures … . This is a volume that will prove useful for many years and that will also survive extensive use … . As such it is highly recommended to the reader who wants an in-depth view of the manganites." (Gary J. Long and Fernande Grandjean, Physicalia, Vol. 57 (2), 2005)

"The book of E. Dagotto, being an original introduction to the physics of manganites, is focused mainly on the problem of nanoscale phase separation of these materials. … The book … provides a solid knowledge of the foundations of the correlation effects and the present status of the field. … this book will be also of a great value for researchers already working in the field of strongly correlated systems as well as for these who are interested in new materials for the spintronics." (G. B. Teitel’baum, Applied Magnetic Resonance, Vol. 24 (2), 2003)

• Physics Department and National High Magnetic Field Lab, Florida State University, Tallahassee, USA

  Elbio Dagotto

Policies and ethics