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Quasicrystals: What do we know? What do we want to know? What can we know?

  • Steurer W Department of Materials, ETH Zurich, Leopold-Ruzicka-Weg 4, Zurich, 8093, Switzerland.
  • 2017-12-23
Published in:
  • Acta crystallographica. Section A, Foundations and advances. - 2018
higher-dimensional crystallography
quasicrystal growth
quasicrystals
stability of quasicrystals
structure analysis
English More than 35 years and 11 000 publications after the discovery of quasicrystals by Dan Shechtman, quite a bit is known about their occurrence, formation, stability, structures and physical properties. It has also been discovered that quasiperiodic self-assembly is not restricted to intermetallics, but can take place in systems on the meso- and macroscales. However, there are some blank areas, even in the centre of the big picture. For instance, it has still not been fully clarified whether quasicrystals are just entropy-stabilized high-temperature phases or whether they can be thermodynamically stable at 0 K as well. More studies are needed for developing a generally accepted model of quasicrystal growth. The state of the art of quasicrystal research is briefly reviewed and the main as-yet unanswered questions are addressed, as well as the experimental limitations to finding answers to them. The focus of this discussion is on quasicrystal structure analysis as well as on quasicrystal stability and growth mechanisms.
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  • English
Open access status
hybrid
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https://sonar.ch/global/documents/155045
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