AWhat changed
Observed sharp diffraction and icosahedral orientational order in an aluminium–manganese alloy, incompatible with a periodic crystal lattice.
Scientific scope
Observed sharp diffraction and icosahedral orientational order in an aluminium–manganese alloy, incompatible with a periodic crystal lattice. Scope limitation: 1984 is the publication, following the 1982 observation. The experiment and subsequent mathematical models are distinct.
Evidence
Assessment uses the catalogue-linked source evidence for the stated contribution. 1984 is the publication, following the 1982 observation. The experiment and subsequent mathematical models are distinct.
Contributors
- D. Shechtman · SCIENCE: Named source contributor; exact labor shares are not measured.
- I. Blech · SCIENCE: Named source contributor; exact labor shares are not measured.
- D. Gratias · SCIENCE: Named source contributor; exact labor shares are not measured.
- J. W. Cahn · SCIENCE: Named source contributor; exact labor shares are not measured.
- Metallic Phase with Long-Range Orientational Order and No Translational Symmetry
- Metallic Phase with Long-Range Orientational Order and No Translational Symmetry — deposited bibliography
- NIST: discovery chronology and the four collaborators
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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