Quasicrystals were initially controversial because they defied classical crystallography rules
Quasicrystals initially faced severe skepticism and controversy because their diffraction patterns displayed symmetries that violated the traditional rules of classical crystallography.
The claim is a specific, contestable historical and scientific statement that passes Step 0. Papers [3] and [4] directly support the idea that quasicrystals were initially considered impossible and displayed forbidden symmetries that defied classical rules.
George B. Kauffman. Dan Shechtman and Quasicrystals. 2016. https://doi.org/10.1333/s00897162701a
This historical account documents how Dan Shechtman's discovery of quasicrystals was initially mocked and considered impossible because it defied established structures.
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C Janot. High-dimensional crystallography. 1992. https://doi.org/10.1093/oso/9780198513896.003.0003
This paper discusses how quasicrystal diffraction patterns exhibit overall 'forbidden' symmetry, highlighting how they challenge standard classical crystallography.
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