Geometry and Thermodynamics: Common Problems of Quasi-crystals, Liquid Crystals and Incommensurate Systems - Workshop Proceedings: 229 (NATO Science Series B: Physics) - Hardcover

Hardcover

ISBN 10: 0306436604 ISBN 13: 9780306436604

Publisher: Kluwer Academic / Plenum Publishers, 1990

Synopsis

Structure and Geometry.- Hierarchic structure.- The structure of quasicrystals: from diffraction patterns to atom positions.- Determination of quasi-crystal structures by higher dimensional analysis.- Six-dimensional atoms for a decorated three-dimensional Penrose tiling.- Metrical aspects of quasicrystal embedding in superspace.- Landau theory and direct methods for crystal structures analysis.- Geometry of films of amphiphile molecules: a curved space approach.- Geometrical approach of blue phases.- Electron microscopy and quasicrystals.- On the dark field imaging behaviour of icosahedral phases in rapidly cooled aluminium alloys.- Electron microscopy of modulated structures.- Models for Stability and Growth.- Physical models of perfect quasicrystal growth.- Generation and dynamics of defects in two-dimensional quasicrystals.- Intrinsic stability of quasicrystals and behavior under a load of Frenkel defects.- Reconstructive phase transition to the icosahedral phase.- Structure and growth of twoand three-dimensional hexatic liquid crystals.- The tiling structure of simple liquids: squares and triangles in two dimensions.- Does cholesteric blue phase III have an icosahedral structure ?.- Intrinsic frustration and space curvature in smectic A liquid crystals.- Critical behavior of polymorphic smectic-A liquid crystals.- Universal behavior in phospholipid multimembrane systems.- Pattern formation during the ordering processes in nematic liquid crystals.- Spatially modulated structures in models with competing interactions some new results.- Weakly periodic structures with a singular continuous spectrum.- The Anderson metal-insulator transition: incommensurate versus disordered systems.- Theory of phase transition between two incommensurate phases in NbTe4.- The origin of polytypes in SiC and ZnS.- Structural modulations in the high-temperature superconductor YBa2Cu3O7.? and semi conducting WO3-x, aspects of non-equilibrium behaviour.- Incommensurate modulations in bismuth-based high-Tc superconductors.- Incommensurate commensurate phase transition of Cu2-xTe. (x < 0.05).- Review of the commensurate and incommensurate transitions in BCCD.- Amorphous and quasicrystalline Al-Cr and Al-Cr-Si phases produced by solid state diffusion of alternating thin layers.- Dynamics and Phasons.- Phasons and amplitudons in modulated structures.- Phonons in quasicrystals and related structures.- Phasons in ferroelectric liquid crystals.- Atomic Debye-Waller factors and phasons in modulated incommensurate structures.- The Landau free energy and acoustic anomalies in incommensurate insulators.- NMR and NQR in incommensurate systems.- Do we understand optical activity in the incommensurate phase of the A2BX4 family.- The coupling between phason and soft modes near the smectic-C* to smectic-A phase transition.- Optical measurements of diffusivities in incommensurate barium sodium niobate.

About this title

Synopsis

A detailed evaluation of the similarities and differences in the theoretical and experimental approaches implemented in the studies of the three types of systems. The papers from the September 1989 Workshop are presented within three sections addressing structure and geometry, models for stability and growth, and dynamics and phasons. Acidic paper.

Edition details

• Publisher: Kluwer Academic / Plenum Publishers
• Publication date: 1990
• Language: English
• ISBN 10: 0306436604
• ISBN 13: 9780306436604
• Binding: Hardcover
• Number of pages: 470
• Editor: Toledano Jean-Claude