Multicritical Phenomena

1. Front Matter

   Pages i-xii

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2. Multicriticality: A Theoretical Introduction

   • Michael E. Fisher

   Pages 1-5

3. Partial Differential Approximants for Multicritical Singularities: An Overview

   • Daniel F. Styer

   Pages 7-11

4. Experimental Studies of Magnetic Tricritical Points: Problems and Progress

   • Werner P. Wolf

   Pages 13-34

5. Experimental Studies of Bicritical Points in 3D Antiferromagnets

   • Y. Shapira

   Pages 35-52

6. The Experimental Evidence for a Lifshitz Point in MnP

   • Y. Shapira

   Pages 53-71

7. Nature of the Smectic-A-Smectic-C Transition Near a Nematic-Smectic-A — Smectic-C Multicritical Point

   • C. C. Huang, S. C. Lien

   Pages 73-79

8. Dynamics Near Multicritical Points

   • Volker Dohm

   Pages 81-112

9. Critical Dynamics of Sound

   • Kristian Fossheim, Jon Otto Fossum

   Pages 113-128

10. Multicritical Phenomena at Structural Phase Transitions

    • Kristian Fossheim

    Pages 129-142

11. Bi- and Tetra-Critical Behavior of Uniaxially Stressed LaA103

    • K. A. Müller, W. Berlinger, J. E. Drumheller, J. G. Bednorz

    Pages 143-153

12. Fluctuation Driven Multicritical Points

    • Amnon Aharony, Daniel Blankschtein

    Pages 155-164

13. A New Multicritical Point in a Seven Dimensional Parameter Space

    • Serge Galam

    Pages 165-170

14. Multicritical Points in Incommensurate Systems

    • Pierre Toledano

    Pages 171-176

15. Neutron Investigation of Modulated Structures

    • R. Currat

    Pages 177-199

16. Nature of the Incommensurate Phase of Rb₂ZnCl ₄

    • S. R. Andrews, H. Mashiyama

    Pages 201-206

17. New Phenomena in Incommensurate Barium Sodium Niobate: Memory and Relaxation Effects

    • Gilles Errandonéa, Arlette Litzler, Hervé Savary, Jean-Claude Tolédano, Jacques Schneck, Jack Aubrée

    Pages 207-212

18. Critical Fluctuauions and Magnetic Ordering in Praseodymium Metal

    • W. G. Stirling, K. A. McEwen

    Pages 213-218

19. Soft Mode and Central Peak as A Consequence of Competing Interactions

    • Per-Anker Lindgård

    Pages 219-220

20. Criticality and Crossover in Stuctural Phase Transitions

    • Paul D. Beale

    Pages 221-225

This book comprises the Proceedings of a NATO Advanced Study Institute on Mu1ticritica1 Phenomena held in Geilo, Norway, between 10-21 April 1983. This school was the seventh to be held in Gei10, on various aspects of phase transitions. In spite of its apparently restrictive title the school was planned as a forum for the discus­ sion of phase transitions and instabilities in systems, with competing interactions and competing order parameters. Thus, in addition to the canonical multicritical points, subjects were diverse as critical phenomena in random magnetic systems and routes to chaos were discussed. The subject matter of the school is naturally divided into a series of categories which to some extent, reflect the historical development of interest in competing phenomena at phase transitions. Multicritical points in equilibrium systems, defined phenomenolo­ gically as points of sudden change of behaviour on an otherwise smooth phase boundary, were the first topics of the school. The theo­ retical consensus which has emerged during the past decade, largely as a result of calculations with the renormalisation group, was reviewed in some detail. The results presented, however, apply only to pure systems (in which dirt and other manifestations of reality are irrelevant) in that small realm close to the phase transition knoYln as "asymtopia.

• Experiment
• Phase Transition
• Phase Transitions
• Renormalization group
• glass
• magnetism

• Institut Laue-Langevin, Grenoble, France

  R. Pynn

• Institute for Energy Technology, Kjeller, Norway

  A. Skjeltorp

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