Front Cover; Solid State Physics; Copyright Page; Contents; Contrbutors to Volume 38; Foreword; Preface; Supplments; Chapter 1. High-pressure Studies of Ionic Conductivity in Solids; I. Introduction; II. Theoretical Background; III. Results and Discussion; IV. Concluding Remarks; Chapter 2. Theory of Polaron Mobility; I. Introduction; II. A Boltzmann Equation for the Polaron; III. Relaxation-Time Approximation for Linear Conductivity; IV. The Drifted Maxwellian Approach for Nonlinear Direct Current Conductivity; V. The Polaron Impedance Function for Quantum Frequencies.

VI. The Polaron Mass and the Polaron MobilityVII. Conclusion; Appendix A; Appendix B; Appendix C; Chapter 3. Density Functional Methods: Theory and Applications; I. Introduction; II. The Hohenberg-Kohn Theorem and Its Extensions; III. Principles of Calculational Procedures; IV. Beyond the Local Density Approximation; V. Linear Response Theory; VI. Some Further Applications; VII. Discussion; Chapter 4. Surface-Enhanced Electromagnetic Processes; I. Introduction and Survey; II. Surface-Enhanced Raman Scattering: Experimental Observations.

III. Surface-Enhanced Raman Scattering: Theoretical ModelsIV. Evidence for the Electromagnetic Model; V. Extensions of the Electromagnetic Model; VI. Particle Dipolar Interactions; VII. Enhanced-Surface Second-Harmonic Generation; VIII. Enhanced Absorption by Adsorbed Dyes; IX. Contributions to the Enhancement by Other Mechanisms; X. Applications of Surface-Enhanced Phenomena; Summary; Chapter 5. The Dynamics of Excitons; I. Introduction; II. Theory of Excitons; III. Exciton-Phonon Interactions; IV. Composite Exciton-Phonon States; V. Exciton Reactions; Author index; Subject index.