CONTENTS -- Preface -- Acknowledgments -- Magnetism Jacques Friedel -- 1. Introduction -- 2. Magnetic Neutron Scattering -- 3. Rare Earth Metals -- 3.1. Electronic resistivity of rare earth metals -- 3.2. Magnetic couplings of rare earth metals -- 4. Ferromagnetic Resonance -- 5. Conclusions -- References -- P. G. de Gennes and Jacques Friedel, J. Phys. and Chem. of Solids 4, 71-77 (1958) Anomalies de resistivite dans certains metaux magnetiques -- 1. GENERALITES -- 2. DIFFUSIONS QUASI-ELASTIQUES -- 3. SECTION EFFICACE DANS LAPPROXIMATION ELASTIQUE -- 4. APPROXIMATION SANS CORRELATIONS -- 5. EFFETS DORDRE A COURTE DISTANCE -- 6. EFFET MAGNETOVIBRATIONNEL -- 7. REMARQUES GENERALES -- REFERENCES -- Surface Bound States in Unconventional Superconductors: An Unforseen Consequence of Earlier Work by Pierre-Gilles de Gennes and Daniel Saint-James Guy Deutscher -- 1. Background -- 2. Bound States in a Normal Layer Backed by a Conventional Superconductor -- 3. ASJ Reections and Bound States in the Case of the High Tc Cuprates -- 3.1. Bound states at the surface of a d-wave superconductor -- 3.2. Experimental observation of ASJ zero energy surface bound states -- 3.3. Probing the origin of the Zero Bias Conductance Peak -- 4. ASJ Reflections Along a Principal Axis -- 5. The ASJ Gap Versus the Single Particle Energy Gap -- 6. Consequences of the Two Energy Scales -- 7. Conclusions -- 8. A Personal Note -- Acknowledgments -- References -- P. G. de Gennes and D. Saint-James, Phys. Lett. 4(2), 151-152 (1963) Elementary excitations in the vicinity of a normal metal-superconducting metal contact -- D. Saint-James, Le Journal de Physique 25, 899-905 (1964) Excitations elementaires au voisinage de la surface de separation d'un metal normal et d'un metal supraconducteur -- I. Modele -- II. Lame normale depaisseur deposee sur un supraconducteur.

III. Couche supraconductrice deposee sur un . supraconducteur different -- IV. Sphere normale baignant dans un supraconducteur -- APPENDICE -- BIBLIOGRAPHIE -- Superconductivity at High Temperature in the Cuprates Julien Bok -- 1. Introduction -- 2. Well Established Properties of the Cuprates -- 2.1. Structure -- 2.2. Superconducting phase -- 2.3. Normal phase -- 2.3.1. The pseudogap region -- 2.3.2. Around and above optimal doping -- 3. Theoretical Models -- 3.1. Electronic structure of the cuprates -- 3.2. BCS condensation versus BE condensation -- 3.3. Mechanism of pairing -- 4. Conclusion -- Acknowledgments -- References -- G. Deutscher and P. G. de Gennes, C. R. Physique 8, 937-941 (2007) A Spatial Interpretation of Emerging Superconductivity in Lightly Doped Cuprates -- 1. Introduction -- 2. The model -- 2.1. Pair formation -- 2.2. Formation of hole-rich and hole-poor regions -- 2.3. Pair propagation -- 3. Discussion -- Acknowledgements -- References -- Macroscopic Random Media and Percolation Etienne Guyon, Jean-Pierre Hulin and St ephane Roux -- 1. A Novel Way of Handling Disorder -- 2. Percolation is more than Geometry -- 3. Percolation and Porous Media -- 3.1. Porous media: generic disordered materials with many applications -- 3.2. Volume averaging vs statistical physics approaches -- 3.3. Invasion percolation: a direct application to porous media -- 3.4. Further developments originating from invasion percolation -- 3.5. A synthesis between macroscopic and microscopic approaches -- 3.6. Hydrodynamic dispersion in porous media: a random walk in a dis- ordered system -- 3.7. Percolation and porous media: other problems and further develop- ments -- 4. The Sol-Gel Transition -- 4.1. Percolation and gelation as a geometrical phase transition -- 4.2. Visco-elastic properties of gels -- 5. Other Applications -- Acknowledgments -- References.

Appendix A: La percolation: un concept uni cateur (Percolation a unifying concept) -- Appendix B De Gennes' Lectures at Coll ege de France -- P. G. de Gennes, La Recherche 7(72), 919-927 (1976) La percolation: un concept uni cateur (Percolation a unifying concept) -- Pierre-Gilles de Gennes and Supersolidity - Comment on C. R. Physique 7, 561-566 (2006) S ebastien Balibar -- 1. The Context: What is "Supersolidity"? -- 2. De Gennes' Idea -- 3. Experimental Evidence for the Role of Defects -- 4. The Stiffening of Crystals -- 5. Another Paradox -- 6. Open Questions and Perspectives -- 7. Conclusion with a Few Personal Words -- Acknowledgments -- References -- P. G. de Gennes, C. R. Physique 7, 561-566 (2006) Quantum dynamics of a single dislocation -- 1. General aims -- 2. Quantum mechanics of a pair of kinks -- 3. Motions under a shear stress -- 4. Statistical shape of the line in zero stress -- 5. Concluding remarks -- Acknowledgements -- References -- On An Analogy between Superconductors and Smectics-A" Tom Lubensky -- 1. Introduction -- 2. Review of Superconductors -- 3. Liquid Crystals and the de Gennes Free Energy -- 3.1. Nematics and Smectics -- 3.2. The de Gennes Free energy -- 3.3. Properties of the Smectic Phase -- 3.4. Anisotropic Rescaling and Gauge Transformations -- 3.5. Dislocations -- 3.6. Extensions of the de Gennes Model -- 4. The Nematic-to-Smectic-A Transition -- 4.1. Critical Phenomena and Scaling -- 4.2. General Properties of the NA Transition -- 5. Theories of the NA Transition -- 5.1. Mean-Field Theories -- 5.2. The -expansion -- 5.3. The 1/n Expansion -- 5.4. Dislocation Theories -- 5.5. Numerical Simulations -- 5.6. Self-Consistent Field Theory -- 6. Experimental Results for the NA Transition -- 7. Smectics in Aerogels and Aerosils -- 8. TGB Phases -- 8.1. Structure of the TGBA and TGBC Phases.

8.2. Experimental Realizations of TGB Phases -- 8.3. Theoretical Approaches to the TGB Phases -- 9. Conclusion -- References -- P. G. de Gennes, Solid State Communications 10, 753-756 (1972) An Analogy between Superconductors and Smectics-A -- 1. PRINCIPLES -- 2. APPLICATIONS BELOW Tc -- 3. PRETRANSITIONAL EFFECTS IN THE NEMATIC PHASE -- REFERENCES -- On a Few Universal Aspects of Liquid Crystals Pawel Pieranski -- 1. Introduction: de Gennes, the School of Physics in Les Houches and Nematodynamics -- 2. Interactions Transmitted by the Nematic "Ether" -- 3. Gedanken Experiment No. 1: Levitation in Nematics -- 4. Ordered Inclusions in Nematics: Experimental Evidence for the Ericksen Stresses -- 5. Gedanken Experiment No. 2: the Meyer's Magic Spiral -- 6. Topological Flows -- 7. Umbilics and Disclinations, Cosmology in the Lab -- 8. Bloch Walls, N eel Points and Spiral Patterns in Excitable Media -- 9. Euler, Landau, de Gennes and Flow Instabilities in Nematics -- 10. Anholonomy in an Elliptical Shear Flow -- 11. Lehman Effect in Cholesterics -- 12. Note Added to Proofs -- 13. Concluding Remarks -- Acknowledgments -- References -- P. G. de Gennes, "Nematodynamics", in "Molecular fluids", lecture notes of the XXVth session of the Les Houches Summer School on Physics, edited by R. Balian and G. Weill, pp. 373-400, published by Gordon and Breach, London 1976 -- 1 Introduction -- 2 Magnetic Colloids -- 3 Nematic Fluids -- 4 Simple Laminar Flows -- 5 Motions of Disclination Lines -- 6 Laminar Flows at Intermediate Reynolds Numbers -- 7 Time Dependent Magnetic Fields -- 8 Hydrodyoamic Instabilities -- References.