Quasicrystal Clear.

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  • Author(s): Horgan, John
  • Source:
    Scientific American. Jan90, Vol. 262 Issue 1, p16. 2p.
  • Additional Information
    • Subject Terms:
      QUASICRYSTALS; ALLOYS; STEINHARDT, Paul J.; MATHEMATICAL physics
    • Abstract:
      Discusses quasicrystals which is a state of matter discovered in an alloy of aluminum and manganese in 1984 by workers at the U.S. National Bureau of Standards. Fivefold symmetry of the alloy's molecular structure; View by Paul J. Steinhardt of the University of Pennsylvania that quasicrystals represent a real-world embodiment of a mathematical construct called Penrose tiling.